2120523431121 has 12 divisors (see below), whose sum is σ = 3063934615248. Its totient is φ = 1413240906264.

The previous prime is 2120523431113. The next prime is 2120523431179. The reversal of 2120523431121 is 1211343250212.

It is a happy number.

2120523431121 is a `hidden beast` number, since 2 + 1 + 20 + 523 + 4 + 3 + 112 + 1 = 666.

It is not a de Polignac number, because 2120523431121 - 2³ = 2120523431113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120523431111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36751335 + ... + 36808988.

It is an arithmetic number, because the mean of its divisors is an integer number (255327884604).

Almost surely, 2^{2120523431121} is an apocalyptic number.

It is an amenable number.

2120523431121 is a deficient number, since it is larger than the sum of its proper divisors (943411184127).

2120523431121 is a wasteful number, since it uses less digits than its factorization.

2120523431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73563532 (or 73563529 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 2120523431121 its reverse (1211343250212), we get a palindrome (3331866681333).

The spelling of 2120523431121 in words is "two trillion, one hundred twenty billion, five hundred twenty-three million, four hundred thirty-one thousand, one hundred twenty-one".