31150532120553 has 6 divisors (see below), whose sum is σ = 44995213063034. Its totient is φ = 20767021413696.

The previous prime is 31150532120489. The next prime is 31150532120563. The reversal of 31150532120553 is 35502123505113.

31150532120553 is a `hidden beast` number, since 3 + 1 + 1 + 50 + 5 + 32 + 1 + 20 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29997835712784 + 1152696407769 = 5477028^2 + 1073637^2 .

It is not a de Polignac number, because 31150532120553 - 2⁶ = 31150532120489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31150532120563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1730585117800 + ... + 1730585117817.

Almost surely, 2^{31150532120553} is an apocalyptic number.

It is an amenable number.

31150532120553 is a deficient number, since it is larger than the sum of its proper divisors (13844680942481).

31150532120553 is a wasteful number, since it uses less digits than its factorization.

31150532120553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461170235623 (or 3461170235620 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

Adding to 31150532120553 its reverse (35502123505113), we get a palindrome (66652655625666).

The spelling of 31150532120553 in words is "thirty-one trillion, one hundred fifty billion, five hundred thirty-two million, one hundred twenty thousand, five hundred fifty-three".