31132030303020 has 96 divisors (see below), whose sum is σ = 87656715095040. Its totient is φ = 8255496602880.

The previous prime is 31132030302973. The next prime is 31132030303103. The reversal of 31132030303020 is 2030303023113.

It is a super-2 number, since 2×31132030303020² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194954929 + ... + 195114551.

It is an arithmetic number, because the mean of its divisors is an integer number (913090782240).

Almost surely, 2^{31132030303020} is an apocalyptic number.

31132030303020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31132030303020 is an abundant number, since it is smaller than the sum of its proper divisors (56524684792020).

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

31132030303020 is a wasteful number, since it uses less digits than its factorization.

31132030303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177775 (or 177773 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31132030303020 its reverse (2030303023113), we get a palindrome (33162333326133).

The spelling of 31132030303020 in words is "thirty-one trillion, one hundred thirty-two billion, thirty million, three hundred three thousand, twenty".