123031404313 has 4 divisors (see below), whose sum is σ = 123155554048. Its totient is φ = 122907254580.

The previous prime is 123031404289. The next prime is 123031404317. The reversal of 123031404313 is 313404130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123031404313 - 2²¹ = 123029307161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031404317) 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, 62073381 + ... + 62075362.

It is an arithmetic number, because the mean of its divisors is an integer number (30788888512).

Almost surely, 2^123031404313 is an apocalyptic number.

It is an amenable number.

123031404313 is a deficient number, since it is larger than the sum of its proper divisors (124149735).

123031404313 is an equidigital number, since it uses as much as digits as its factorization.

123031404313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124149734.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 123031404313 its reverse (313404130321), we get a palindrome (436435534634).

The spelling of 123031404313 in words is "one hundred twenty-three billion, thirty-one million, four hundred four thousand, three hundred thirteen".