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20123222130213 = 341924019666511
BaseRepresentation
bin1001001001101010011011…
…00000011011111000100101
32122020202112221122021212020
410210311031200123320211
510114144324331131323
6110444251452013353
74144566126604626
oct444651540337045
978222487567766
1020123222130213
116459235310294
122310022461259
13b2c7c4bb7817
144d7d7d4ada4d
1524d6b7b5bae3
hex124d4d81be25

20123222130213 has 16 divisors (see below), whose sum is σ = 26896158643200. Its totient is φ = 13382886282480.

The previous prime is 20123222130191. The next prime is 20123222130217. The reversal of 20123222130213 is 31203122232102.

It is not a de Polignac number, because 20123222130213 - 25 = 20123222130181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123222130217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29858628 + ... + 30525138.

It is an arithmetic number, because the mean of its divisors is an integer number (1681009915200).

Almost surely, 220123222130213 is an apocalyptic number.

It is an amenable number.

20123222130213 is a deficient number, since it is larger than the sum of its proper divisors (6772936512987).

20123222130213 is a wasteful number, since it uses less digits than its factorization.

20123222130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690952.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20123222130213 its reverse (31203122232102), we get a palindrome (51326344362315).

The spelling of 20123222130213 in words is "twenty trillion, one hundred twenty-three billion, two hundred twenty-two million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 3 419 1257 24019 72057 666511 1999533 10063961 30191883 279268109 837804327 16008927709 48026783127 6707740710071 20123222130213