2131210132320 has 48 divisors (see below), whose sum is σ = 6713311918320. Its totient is φ = 568322701824.

The previous prime is 2131210132301. The next prime is 2131210132321. The reversal of 2131210132320 is 232310121312.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131210132321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220010075 + ... + 2220011034.

It is an arithmetic number, because the mean of its divisors is an integer number (139860664965).

Almost surely, 2^{2131210132320} is an apocalyptic number.

2131210132320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131210132320 is an abundant number, since it is smaller than the sum of its proper divisors (4582101786000).

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

2131210132320 is a wasteful number, since it uses less digits than its factorization.

2131210132320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440021127 (or 4440021119 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2131210132320 its reverse (232310121312), we get a palindrome (2363520253632).

The spelling of 2131210132320 in words is "two trillion, one hundred thirty-one billion, two hundred ten million, one hundred thirty-two thousand, three hundred twenty".