31044345151136 has 24 divisors (see below), whose sum is σ = 63226090880820. Its totient is φ = 14986925244928.

The previous prime is 31044345151117. The next prime is 31044345151153. The reversal of 31044345151136 is 63115154344013.

It can be written as a sum of positive squares in 2 ways, for example, as 26344034430736 + 4700310720400 = 5132644^2 + 2168020^2 .

It is a super-2 number, since 2×31044345151136² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31044345151093 and 31044345151102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16726478141 + ... + 16726479996.

Almost surely, 2^{31044345151136} is an apocalyptic number.

It is an amenable number.

31044345151136 is an abundant number, since it is smaller than the sum of its proper divisors (32181745729684).

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

31044345151136 is a wasteful number, since it uses less digits than its factorization.

31044345151136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33452958176 (or 33452958168 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

Adding to 31044345151136 its reverse (63115154344013), we get a palindrome (94159499495149).

The spelling of 31044345151136 in words is "thirty-one trillion, forty-four billion, three hundred forty-five million, one hundred fifty-one thousand, one hundred thirty-six".