31144123040512 has 18 divisors (see below), whose sum is σ = 62166589350908. Its totient is φ = 15572061520128.

The previous prime is 31144123040501. The next prime is 31144123040533. The reversal of 31144123040512 is 21504032144113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60828365058 + ... + 60828365569.

Almost surely, 2^{31144123040512} is an apocalyptic number.

31144123040512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31144123040512 is a deficient number, since it is larger than the sum of its proper divisors (31022466310396).

31144123040512 is an equidigital number, since it uses as much as digits as its factorization.

31144123040512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121656730643 (or 121656730629 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 31144123040512 its reverse (21504032144113), we get a palindrome (52648155184625).

The spelling of 31144123040512 in words is "thirty-one trillion, one hundred forty-four billion, one hundred twenty-three million, forty thousand, five hundred twelve".