31348536020 has 24 divisors (see below), whose sum is σ = 65841064800. Its totient is φ = 12537673632.

The previous prime is 31348535989. The next prime is 31348536119. The reversal of 31348536020 is 2063584313.

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, 44111 + ... + 254249.

It is an arithmetic number, because the mean of its divisors is an integer number (2743377700).

Almost surely, 2^31348536020 is an apocalyptic number.

It is an amenable number.

31348536020 is an abundant number, since it is smaller than the sum of its proper divisors (34492528780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31348536020 is a wasteful number, since it uses less digits than its factorization.

31348536020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217607 (or 217605 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 31348536020 in words is "thirty-one billion, three hundred forty-eight million, five hundred thirty-six thousand, twenty".