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121031022300 = 223521723731573
BaseRepresentation
bin111000010111000000…
…0101101011011011100
3102120101212012222012120
41300232000231123130
53440332420203200
6131333442502540
711513155500216
oct1605600553334
9376355188176
10121031022300
1147368947471
121b559064a50
13b54a996936
145c0224b5b6
1532357639a0
hex1c2e02d6dc

121031022300 has 72 divisors (see below), whose sum is σ = 370782112176. Its totient is φ = 30376412160.

The previous prime is 121031022293. The next prime is 121031022367. The reversal of 121031022300 is 3220130121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121031022300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11860687 + ... + 11870886.

It is an arithmetic number, because the mean of its divisors is an integer number (5149751558).

Almost surely, 2121031022300 is an apocalyptic number.

121031022300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121031022300 is an abundant number, since it is smaller than the sum of its proper divisors (249751089876).

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

121031022300 is a wasteful number, since it uses less digits than its factorization.

121031022300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23731607 (or 23731600 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121031022300 its reverse (3220130121), we get a palindrome (124251152421).

The spelling of 121031022300 in words is "one hundred twenty-one billion, thirty-one million, twenty-two thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 25 30 34 50 51 60 68 75 85 100 102 150 170 204 255 300 340 425 510 850 1020 1275 1700 2550 5100 23731573 47463146 71194719 94926292 118657865 142389438 237315730 284778876 355973595 403436741 474631460 593289325 711947190 806873482 1186578650 1210310223 1423894380 1613746964 1779867975 2017183705 2373157300 2420620446 3559735950 4034367410 4841240892 6051551115 7119471900 8068734820 10085918525 12103102230 20171837050 24206204460 30257755575 40343674100 60515511150 121031022300