2131200913020 has 48 divisors (see below), whose sum is σ = 5971215213600. Its totient is φ = 567953323776.

The previous prime is 2131200912983. The next prime is 2131200913021. The reversal of 2131200913020 is 203190021312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131200913021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11372527 + ... + 11558406.

It is an arithmetic number, because the mean of its divisors is an integer number (124400316950).

Almost surely, 2^{2131200913020} is an apocalyptic number.

2131200913020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131200913020 is an abundant number, since it is smaller than the sum of its proper divisors (3840014300580).

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

2131200913020 is a wasteful number, since it uses less digits than its factorization.

2131200913020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22932494 (or 22932492 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 2131200913020 its reverse (203190021312), we get a palindrome (2334390934332).

The spelling of 2131200913020 in words is "two trillion, one hundred thirty-one billion, two hundred million, nine hundred thirteen thousand, twenty".