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20122030231320 = 2335375114470251
BaseRepresentation
bin1001001001101000001100…
…11101101100111100011000
32122020122110212212112221210
410210310012131230330120
510114134404214400240
6110443533313303120
74144524444620013
oct444640635547430
978218425775853
1020122030231320
116458783537a86
12230b94b264aa0
13b2c664c9b7c4
144d7ca908c37a
1524d6481c1780
hex124d0676cf18

20122030231320 has 64 divisors (see below), whose sum is σ = 60367713488640. Its totient is φ = 5365730480000.

The previous prime is 20122030231301. The next prime is 20122030231343. The reversal of 20122030231320 is 2313203022102.

It is a happy number.

It is a super-2 number, since 2×201220302313202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266195 + ... + 6736445.

It is an arithmetic number, because the mean of its divisors is an integer number (943245523260).

Almost surely, 220122030231320 is an apocalyptic number.

20122030231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122030231320 is an abundant number, since it is smaller than the sum of its proper divisors (40245683257320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122030231320 is a wasteful number, since it uses less digits than its factorization.

20122030231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507776 (or 4507772 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20122030231320 its reverse (2313203022102), we get a palindrome (22435233253422).

The spelling of 20122030231320 in words is "twenty trillion, one hundred twenty-two billion, thirty million, two hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 37511 75022 112533 150044 187555 225066 300088 375110 450132 562665 750220 900264 1125330 1500440 2250660 4470251 4501320 8940502 13410753 17881004 22351255 26821506 35762008 44702510 53643012 67053765 89405020 107286024 134107530 178810040 268215060 536430120 167683585261 335367170522 503050755783 670734341044 838417926305 1006101511566 1341468682088 1676835852610 2012203023132 2515253778915 3353671705220 4024406046264 5030507557830 6707343410440 10061015115660 20122030231320