31310133124 has 12 divisors (see below), whose sum is σ = 54889033500. Its totient is φ = 15627552128.

The previous prime is 31310133067. The next prime is 31310133149. The reversal of 31310133124 is 42133101313.

It can be written as a sum of positive squares in 2 ways, for example, as 4351777024 + 26958356100 = 65968^2 + 164190^2 .

It is a super-3 number, since 3×31310133124³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31310133095 and 31310133104.

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, 6876049 + ... + 6880600.

It is an arithmetic number, because the mean of its divisors is an integer number (4574086125).

Almost surely, 2^31310133124 is an apocalyptic number.

It is an amenable number.

31310133124 is a deficient number, since it is larger than the sum of its proper divisors (23578900376).

31310133124 is a wasteful number, since it uses less digits than its factorization.

31310133124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13757222 (or 13757220 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31310133124 its reverse (42133101313), we get a palindrome (73443234437).

The spelling of 31310133124 in words is "thirty-one billion, three hundred ten million, one hundred thirty-three thousand, one hundred twenty-four".