31146211532056 has 16 divisors (see below), whose sum is σ = 59001199682040. Its totient is φ = 15412558283520.

The previous prime is 31146211532039. The next prime is 31146211532071. The reversal of 31146211532056 is 65023511264113.

It is a congruent number.

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, 20068434490 + ... + 20068436041.

Almost surely, 2^{31146211532056} is an apocalyptic number.

It is an amenable number.

31146211532056 is a deficient number, since it is larger than the sum of its proper divisors (27854988149984).

31146211532056 is a wasteful number, since it uses less digits than its factorization.

31146211532056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40136870634 (or 40136870630 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 31146211532056 its reverse (65023511264113), we get a palindrome (96169722796169).

The spelling of 31146211532056 in words is "thirty-one trillion, one hundred forty-six billion, two hundred eleven million, five hundred thirty-two thousand, fifty-six".