31371312248 has 32 divisors (see below), whose sum is σ = 60422804400. Its totient is φ = 15258730752.

The previous prime is 31371312239. The next prime is 31371312257. The reversal of 31371312248 is 84221317313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31371312239) and next prime (31371312257).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2677988 + ... + 2689676.

Almost surely, 2^31371312248 is an apocalyptic number.

It is an amenable number.

31371312248 is a deficient number, since it is larger than the sum of its proper divisors (29051492152).

31371312248 is a wasteful number, since it uses less digits than its factorization.

31371312248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20799 (or 20795 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The spelling of 31371312248 in words is "thirty-one billion, three hundred seventy-one million, three hundred twelve thousand, two hundred forty-eight".