31030203412 has 48 divisors (see below), whose sum is σ = 58721462800. Its totient is φ = 14262635520.

The previous prime is 31030203401. The next prime is 31030203467. The reversal of 31030203412 is 21430203013.

It can be written as a sum of positive squares in 8 ways, for example, as 905047056 + 30125156356 = 30084^2 + 173566^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31030203412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21713914 + ... + 21715342.

Almost surely, 2^31030203412 is an apocalyptic number.

It is an amenable number.

31030203412 is a deficient number, since it is larger than the sum of its proper divisors (27691259388).

31030203412 is a wasteful number, since it uses less digits than its factorization.

31030203412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31030203412 its reverse (21430203013), we get a palindrome (52460406425).

The spelling of 31030203412 in words is "thirty-one billion, thirty million, two hundred three thousand, four hundred twelve".