123233132131 has 4 divisors (see below), whose sum is σ = 123235281792. Its totient is φ = 123230982472.

The previous prime is 123233132123. The next prime is 123233132147. The reversal of 123233132131 is 131231332321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131231332321 = 151 ⋅869081671.

It is a cyclic number.

It is not a de Polignac number, because 123233132131 - 2³ = 123233132123 is a prime.

It is a super-2 number, since 2×123233132131² (a number of 23 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 = 123233132096 and 123233132105.

It is not an unprimeable number, because it can be changed into a prime (123233132171) 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, 986416 + ... + 1104301.

It is an arithmetic number, because the mean of its divisors is an integer number (30808820448).

Almost surely, 2^123233132131 is an apocalyptic number.

123233132131 is a deficient number, since it is larger than the sum of its proper divisors (2149661).

123233132131 is an equidigital number, since it uses as much as digits as its factorization.

123233132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149660.

The product of its digits is 1944, while the sum is 25.

Adding to 123233132131 its reverse (131231332321), we get a palindrome (254464464452).

The spelling of 123233132131 in words is "one hundred twenty-three billion, two hundred thirty-three million, one hundred thirty-two thousand, one hundred thirty-one".