2331131020 has 24 divisors (see below), whose sum is σ = 4942907424. Its totient is φ = 923398656.

The previous prime is 2331131009. The next prime is 2331131057. The reversal of 2331131020 is 201311332.

It is a junction number, because it is equal to n+sod(n) for n = 2331130985 and 2331131003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563749 + ... + 567868.

It is an arithmetic number, because the mean of its divisors is an integer number (205954476).

Almost surely, 2^2331131020 is an apocalyptic number.

2331131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331131020 is an abundant number, since it is smaller than the sum of its proper divisors (2611776404).

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

2331131020 is a wasteful number, since it uses less digits than its factorization.

2331131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131729 (or 1131727 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2331131020 is about 48281.7876636729. The cubic root of 2331131020 is about 1325.9349793363.

Adding to 2331131020 its reverse (201311332), we get a palindrome (2532442352).

The spelling of 2331131020 in words is "two billion, three hundred thirty-one million, one hundred thirty-one thousand, twenty".