123120221022131 has 8 divisors (see below), whose sum is σ = 123210216584784. Its totient is φ = 123030240252640.

The previous prime is 123120221022089. The next prime is 123120221022167. The reversal of 123120221022131 is 131220122021321.

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 123120221022131 - 2⁴² = 118722174511027 is a prime.

It is a super-2 number, since 2×123120221022131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123120221022097 and 123120221022106.

It is not an unprimeable number, because it can be changed into a prime (123120221022181) 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, 12980825 + ... + 20365221.

It is an arithmetic number, because the mean of its divisors is an integer number (15401277073098).

Almost surely, 2^{123120221022131} is an apocalyptic number.

123120221022131 is a deficient number, since it is larger than the sum of its proper divisors (89995562653).

123120221022131 is a wasteful number, since it uses less digits than its factorization.

123120221022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7396581.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123120221022131 its reverse (131220122021321), we get a palindrome (254340343043452).

The spelling of 123120221022131 in words is "one hundred twenty-three trillion, one hundred twenty billion, two hundred twenty-one million, twenty-two thousand, one hundred thirty-one".