31124090169 has 12 divisors (see below), whose sum is σ = 45074405376. Its totient is φ = 20695215192.

The previous prime is 31124090159. The next prime is 31124090177. The reversal of 31124090169 is 96109042113.

It is a happy number.

31124090169 is a `hidden beast` number, since 311 + 240 + 90 + 16 + 9 = 666.

It is not a de Polignac number, because 31124090169 - 2²⁵ = 31090535737 is a prime.

It is a super-2 number, since 2×31124090169² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31124090159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4511217 + ... + 4518110.

It is an arithmetic number, because the mean of its divisors is an integer number (3756200448).

Almost surely, 2^31124090169 is an apocalyptic number.

It is an amenable number.

31124090169 is a deficient number, since it is larger than the sum of its proper divisors (13950315207).

31124090169 is a wasteful number, since it uses less digits than its factorization.

31124090169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029716 (or 9029713 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 31124090169 in words is "thirty-one billion, one hundred twenty-four million, ninety thousand, one hundred sixty-nine".