123303131323 has 4 divisors (see below), whose sum is σ = 123368824800. Its totient is φ = 123237437848.

The previous prime is 123303131233. The next prime is 123303131387. The reversal of 123303131323 is 323131303321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323131303321 = 346429 ⋅932749.

It is a cyclic number.

It is not a de Polignac number, because 123303131323 - 2²⁵ = 123269576891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123303131023) 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, 32843923 + ... + 32847676.

It is an arithmetic number, because the mean of its divisors is an integer number (30842206200).

Almost surely, 2^123303131323 is an apocalyptic number.

123303131323 is a deficient number, since it is larger than the sum of its proper divisors (65693477).

123303131323 is an equidigital number, since it uses as much as digits as its factorization.

123303131323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65693476.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 123303131323 its reverse (323131303321), we get a palindrome (446434434644).

The spelling of 123303131323 in words is "one hundred twenty-three billion, three hundred three million, one hundred thirty-one thousand, three hundred twenty-three".