123131403199 has 8 divisors (see below), whose sum is σ = 141035018400. Its totient is φ = 105306141696.

The previous prime is 123131403191. The next prime is 123131403247. The reversal of 123131403199 is 991304131321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123131403199 - 2³ = 123131403191 is a prime.

It is a super-2 number, since 2×123131403199² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131403191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19585054 + ... + 19591339.

It is an arithmetic number, because the mean of its divisors is an integer number (17629377300).

Almost surely, 2^123131403199 is an apocalyptic number.

123131403199 is a deficient number, since it is larger than the sum of its proper divisors (17903615201).

123131403199 is an equidigital number, since it uses as much as digits as its factorization.

123131403199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39176849.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 123131403199 in words is "one hundred twenty-three billion, one hundred thirty-one million, four hundred three thousand, one hundred ninety-nine".