2123112521023 has 8 divisors (see below), whose sum is σ = 2365271244000. Its totient is φ = 1892216994528.

The previous prime is 2123112521021. The next prime is 2123112521027. The reversal of 2123112521023 is 3201252113212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123112521023 - 2¹ = 2123112521021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123112521021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2815798723 + ... + 2815799476.

It is an arithmetic number, because the mean of its divisors is an integer number (295658905500).

Almost surely, 2^{2123112521023} is an apocalyptic number.

2123112521023 is a deficient number, since it is larger than the sum of its proper divisors (242158722977).

2123112521023 is a wasteful number, since it uses less digits than its factorization.

2123112521023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631598241.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 2123112521023 its reverse (3201252113212), we get a palindrome (5324364634235).

The spelling of 2123112521023 in words is "two trillion, one hundred twenty-three billion, one hundred twelve million, five hundred twenty-one thousand, twenty-three".