123110402421331 has 4 divisors (see below), whose sum is σ = 132580433376832. Its totient is φ = 113640371465832.

The previous prime is 123110402421319. The next prime is 123110402421371. The reversal of 123110402421331 is 133124204011321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123110402421331 - 2⁵ = 123110402421299 is a prime.

It is a super-2 number, since 2×123110402421331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123110402421331.

It is not an unprimeable number, because it can be changed into a prime (123110402421311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4735015477731 + ... + 4735015477756.

It is an arithmetic number, because the mean of its divisors is an integer number (33145108344208).

Almost surely, 2^{123110402421331} is an apocalyptic number.

123110402421331 is a deficient number, since it is larger than the sum of its proper divisors (9470030955501).

123110402421331 is an equidigital number, since it uses as much as digits as its factorization.

123110402421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9470030955500.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 123110402421331 its reverse (133124204011321), we get a palindrome (256234606432652).

The spelling of 123110402421331 in words is "one hundred twenty-three trillion, one hundred ten billion, four hundred two million, four hundred twenty-one thousand, three hundred thirty-one".