123023011011121 has 32 divisors (see below), whose sum is σ = 133098231168000. Its totient is φ = 113036570910720.

The previous prime is 123023011011107. The next prime is 123023011011127. The reversal of 123023011011121 is 121110110320321.

It is a cyclic number.

It is not a de Polignac number, because 123023011011121 - 2²⁵ = 123022977456689 is a prime.

It is a super-2 number, since 2×123023011011121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123023011011127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6200434161 + ... + 6200454001.

It is an arithmetic number, because the mean of its divisors is an integer number (4159319724000).

Almost surely, 2^{123023011011121} is an apocalyptic number.

It is an amenable number.

123023011011121 is a deficient number, since it is larger than the sum of its proper divisors (10075220156879).

123023011011121 is a wasteful number, since it uses less digits than its factorization.

123023011011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22609.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 123023011011121 its reverse (121110110320321), we get a palindrome (244133121331442).

The spelling of 123023011011121 in words is "one hundred twenty-three trillion, twenty-three billion, eleven million, eleven thousand, one hundred twenty-one".