231133303020 has 24 divisors (see below), whose sum is σ = 647173248624. Its totient is φ = 61635547456.

The previous prime is 231133302979. The next prime is 231133303039. The reversal of 231133303020 is 20303331132.

231133303020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231133303020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926110799 + ... + 1926110918.

It is an arithmetic number, because the mean of its divisors is an integer number (26965552026).

Almost surely, 2^231133303020 is an apocalyptic number.

231133303020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231133303020 is an abundant number, since it is smaller than the sum of its proper divisors (416039945604).

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

231133303020 is a wasteful number, since it uses less digits than its factorization.

231133303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852221729 (or 3852221727 counting only the distinct ones).

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

Adding to 231133303020 its reverse (20303331132), we get a palindrome (251436634152).

The spelling of 231133303020 in words is "two hundred thirty-one billion, one hundred thirty-three million, three hundred three thousand, twenty".