31010134020 has 48 divisors (see below), whose sum is σ = 86837045568. Its totient is φ = 8268543360.

The previous prime is 31010134019. The next prime is 31010134073. The reversal of 31010134020 is 2043101013.

It is a super-2 number, since 2×31010134020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796815 + ... + 834825.

It is an arithmetic number, because the mean of its divisors is an integer number (1809105116).

Almost surely, 2^31010134020 is an apocalyptic number.

31010134020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31010134020 is an abundant number, since it is smaller than the sum of its proper divisors (55826911548).

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

31010134020 is a wasteful number, since it uses less digits than its factorization.

31010134020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51620 (or 51618 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31010134020 its reverse (2043101013), we get a palindrome (33053235033).

The spelling of 31010134020 in words is "thirty-one billion, ten million, one hundred thirty-four thousand, twenty".