2113121431323 has 24 divisors (see below), whose sum is σ = 3489065580000. Its totient is φ = 1207242451584.

The previous prime is 2113121431313. The next prime is 2113121431327. The reversal of 2113121431323 is 3231341213112.

2113121431323 is a `hidden beast` number, since 2 + 1 + 1 + 312 + 14 + 313 + 23 = 666.

It is not a de Polignac number, because 2113121431323 - 2⁴ = 2113121431307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2113121431327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3248448 + ... + 3844301.

It is an arithmetic number, because the mean of its divisors is an integer number (145377732500).

Almost surely, 2^{2113121431323} is an apocalyptic number.

2113121431323 is a deficient number, since it is larger than the sum of its proper divisors (1375944148677).

2113121431323 is a wasteful number, since it uses less digits than its factorization.

2113121431323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097491 (or 7097488 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 2113121431323 its reverse (3231341213112), we get a palindrome (5344462644435).

The spelling of 2113121431323 in words is "two trillion, one hundred thirteen billion, one hundred twenty-one million, four hundred thirty-one thousand, three hundred twenty-three".