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152121401121 = 31761103474737
BaseRepresentation
bin1000110110101100100…
…1000101111100100001
3112112122121020212010110
42031223021011330201
54443021034313441
6153514505321533
713663465401114
oct2155311057441
9475577225113
10152121401121
1159572624218
12255951962a9
1311463c213b1
14751140c57b
153e54e72b16
hex236b245f21

152121401121 has 32 divisors (see below), whose sum is σ = 220399964928. Its totient is φ = 92972298240.

The previous prime is 152121401119. The next prime is 152121401123. The reversal of 152121401121 is 121104121251.

It is an interprime number because it is at equal distance from previous prime (152121401119) and next prime (152121401123).

It is not a de Polignac number, because 152121401121 - 21 = 152121401119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152121401123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83065 + ... + 557801.

It is an arithmetic number, because the mean of its divisors is an integer number (6887498904).

Almost surely, 2152121401121 is an apocalyptic number.

It is an amenable number.

152121401121 is a deficient number, since it is larger than the sum of its proper divisors (68278563807).

152121401121 is a wasteful number, since it uses less digits than its factorization.

152121401121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474921.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 152121401121 its reverse (121104121251), we get a palindrome (273225522372).

The spelling of 152121401121 in words is "one hundred fifty-two billion, one hundred twenty-one million, four hundred one thousand, one hundred twenty-one".

Divisors: 1 3 17 51 61 103 183 309 1037 1751 3111 5253 6283 18849 106811 320433 474737 1424211 8070529 24211587 28958957 48897911 86876871 146693733 492302269 831264487 1476906807 2493793461 2982772571 8948317713 50707133707 152121401121