31431052115134 has 48 divisors (see below), whose sum is σ = 55608149376000. Its totient is φ = 13283854292016.

The previous prime is 31431052115117. The next prime is 31431052115137. The reversal of 31431052115134 is 43151125013413.

It is a super-2 number, since 2×31431052115134² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31431052115134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431052115137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4101834 + ... + 8926765.

It is an arithmetic number, because the mean of its divisors is an integer number (1158503112000).

Almost surely, 2^{31431052115134} is an apocalyptic number.

31431052115134 is a deficient number, since it is larger than the sum of its proper divisors (24177097260866).

31431052115134 is a wasteful number, since it uses less digits than its factorization.

31431052115134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028957 (or 13028950 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 31431052115134 its reverse (43151125013413), we get a palindrome (74582177128547).

The spelling of 31431052115134 in words is "thirty-one trillion, four hundred thirty-one billion, fifty-two million, one hundred fifteen thousand, one hundred thirty-four".