2131131302020 has 48 divisors (see below), whose sum is σ = 5126260906368. Its totient is φ = 729024192000.

The previous prime is 2131131301987. The next prime is 2131131302029. The reversal of 2131131302020 is 202031311312.

It is not an unprimeable number, because it can be changed into a prime (2131131302029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17118981 + ... + 17243020.

It is an arithmetic number, because the mean of its divisors is an integer number (106797102216).

Almost surely, 2^{2131131302020} is an apocalyptic number.

2131131302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131131302020 is an abundant number, since it is smaller than the sum of its proper divisors (2995129604348).

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

2131131302020 is a wasteful number, since it uses less digits than its factorization.

2131131302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34362460 (or 34362458 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2131131302020 its reverse (202031311312), we get a palindrome (2333162613332).

The spelling of 2131131302020 in words is "two trillion, one hundred thirty-one billion, one hundred thirty-one million, three hundred two thousand, twenty".