123331118573 has 4 divisors (see below), whose sum is σ = 132818127708. Its totient is φ = 113844109440.

The previous prime is 123331118569. The next prime is 123331118587. The reversal of 123331118573 is 375811133321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63344332489 + 59986786084 = 251683^2 + 244922^2 .

It is a cyclic number.

It is not a de Polignac number, because 123331118573 - 2² = 123331118569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123331118503) 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, 4743504548 + ... + 4743504573.

It is an arithmetic number, because the mean of its divisors is an integer number (33204531927).

Almost surely, 2^123331118573 is an apocalyptic number.

123331118573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123331118573 is a deficient number, since it is larger than the sum of its proper divisors (9487009135).

123331118573 is an equidigital number, since it uses as much as digits as its factorization.

123331118573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487009134.

The product of its digits is 45360, while the sum is 38.

The spelling of 123331118573 in words is "one hundred twenty-three billion, three hundred thirty-one million, one hundred eighteen thousand, five hundred seventy-three".