2131332332121 has 48 divisors (see below), whose sum is σ = 3303968828160. Its totient is φ = 1371366339840.

The previous prime is 2131332332113. The next prime is 2131332332201. The reversal of 2131332332121 is 1212332331312.

2131332332121 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 332 + 3 + 321 + 2 + 1 = 666.

It is not a de Polignac number, because 2131332332121 - 2³ = 2131332332113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2131332336121) 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 47 ways as a sum of consecutive naturals, for example, 18765921 + ... + 18879153.

It is an arithmetic number, because the mean of its divisors is an integer number (68832683920).

Almost surely, 2^{2131332332121} is an apocalyptic number.

It is an amenable number.

2131332332121 is a deficient number, since it is larger than the sum of its proper divisors (1172636496039).

2131332332121 is a wasteful number, since it uses less digits than its factorization.

2131332332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115948 (or 115936 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 2131332332121 its reverse (1212332331312), we get a palindrome (3343664663433).

The spelling of 2131332332121 in words is "two trillion, one hundred thirty-one billion, three hundred thirty-two million, three hundred thirty-two thousand, one hundred twenty-one".