2131323222120 has 128 divisors (see below), whose sum is σ = 6553656051840. Its totient is φ = 554326502400.

The previous prime is 2131323222109. The next prime is 2131323222137. The reversal of 2131323222120 is 212223231312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500287 + ... + 2124366.

It is an arithmetic number, because the mean of its divisors is an integer number (51200437905).

Almost surely, 2^{2131323222120} is an apocalyptic number.

2131323222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131323222120 is an abundant number, since it is smaller than the sum of its proper divisors (4422332829720).

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

2131323222120 is a wasteful number, since it uses less digits than its factorization.

2131323222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624835 (or 2624831 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2131323222120 its reverse (212223231312), we get a palindrome (2343546453432).

The spelling of 2131323222120 in words is "two trillion, one hundred thirty-one billion, three hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty".