31372143514 has 12 divisors (see below), whose sum is σ = 47869341354. Its totient is φ = 15420202712.

The previous prime is 31372143511. The next prime is 31372143529. The reversal of 31372143514 is 41534127313.

It can be written as a sum of positive squares in only one way, i.e., 22405000489 + 8967143025 = 149683^2 + 94695^2 .

It is a super-2 number, since 2×31372143514² (a number of 22 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 31372143514.

It is not an unprimeable number, because it can be changed into a prime (31372143511) 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, 2246137 + ... + 2260060.

Almost surely, 2^31372143514 is an apocalyptic number.

31372143514 is a deficient number, since it is larger than the sum of its proper divisors (16497197840).

31372143514 is an equidigital number, since it uses as much as digits as its factorization.

31372143514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506317 (or 4506258 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The spelling of 31372143514 in words is "thirty-one billion, three hundred seventy-two million, one hundred forty-three thousand, five hundred fourteen".