31325053020 has 48 divisors (see below), whose sum is σ = 87718837248. Its totient is φ = 8352520000.

The previous prime is 31325052977. The next prime is 31325053033. The reversal of 31325053020 is 2035052313.

It is a happy number.

It is a super-2 number, since 2×31325053020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806077 + ... + 844043.

It is an arithmetic number, because the mean of its divisors is an integer number (1827475776).

Almost surely, 2^31325053020 is an apocalyptic number.

31325053020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31325053020 is an abundant number, since it is smaller than the sum of its proper divisors (56393784228).

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

31325053020 is a wasteful number, since it uses less digits than its factorization.

31325053020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51730 (or 51728 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The spelling of 31325053020 in words is "thirty-one billion, three hundred twenty-five million, fifty-three thousand, twenty".