2113320232121 has 12 divisors (see below), whose sum is σ = 2537653789440. Its totient is φ = 1752984523080.

The previous prime is 2113320232091. The next prime is 2113320232159. The reversal of 2113320232121 is 1212320233112.

It is not a de Polignac number, because 2113320232121 - 2¹⁰ = 2113320231097 is a prime.

It is a super-2 number, since 2×2113320232121² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2113320232181) 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, 695627261 + ... + 695630298.

It is an arithmetic number, because the mean of its divisors is an integer number (211471149120).

Almost surely, 2^{2113320232121} is an apocalyptic number.

It is an amenable number.

2113320232121 is a deficient number, since it is larger than the sum of its proper divisors (424333557319).

2113320232121 is a wasteful number, since it uses less digits than its factorization.

2113320232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391257604 (or 1391257597 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2113320232121 its reverse (1212320233112), we get a palindrome (3325640465233).

Subtracting from 2113320232121 its reverse (1212320233112), we obtain a palindrome (900999999009).

The spelling of 2113320232121 in words is "two trillion, one hundred thirteen billion, three hundred twenty million, two hundred thirty-two thousand, one hundred twenty-one".