31011245135152 has 20 divisors (see below), whose sum is σ = 60084394945360. Its totient is φ = 15505594826688.

The previous prime is 31011245135107. The next prime is 31011245135161. The reversal of 31011245135152 is 25153154211013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9823174 + ... + 12590362.

It is an arithmetic number, because the mean of its divisors is an integer number (3004219747268).

Almost surely, 2^{31011245135152} is an apocalyptic number.

It is an amenable number.

31011245135152 is a deficient number, since it is larger than the sum of its proper divisors (29073149810208).

31011245135152 is a wasteful number, since it uses less digits than its factorization.

31011245135152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467620 (or 3467614 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 31011245135152 its reverse (25153154211013), we get a palindrome (56164399346165).

The spelling of 31011245135152 in words is "thirty-one trillion, eleven billion, two hundred forty-five million, one hundred thirty-five thousand, one hundred fifty-two".