233131031012020 has 48 divisors (see below), whose sum is σ = 516012861162960. Its totient is φ = 88338004192256.

The previous prime is 233131031011943. The next prime is 233131031012041. The reversal of 233131031012020 is 20210130131332.

It can be written as a sum of positive squares in 8 ways, for example, as 33070149904 + 233097960862116 = 181852^2 + 15267546^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233131031011982 and 233131031012000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3791950897 + ... + 3792012376.

It is an arithmetic number, because the mean of its divisors is an integer number (10750267940895).

Almost surely, 2^{233131031012020} is an apocalyptic number.

233131031012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233131031012020 is an abundant number, since it is smaller than the sum of its proper divisors (282881830150940).

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

233131031012020 is a wasteful number, since it uses less digits than its factorization.

233131031012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583963364 (or 7583963362 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 233131031012020 its reverse (20210130131332), we get a palindrome (253341161143352).

The spelling of 233131031012020 in words is "two hundred thirty-three trillion, one hundred thirty-one billion, thirty-one million, twelve thousand, twenty".