123413721575 has 6 divisors (see below), whose sum is σ = 153033014784. Its totient is φ = 98730977240.

The previous prime is 123413721539. The next prime is 123413721619. The reversal of 123413721575 is 575127314321.

It is a happy number.

It is not a de Polignac number, because 123413721575 - 2²² = 123409527271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2468274407 + ... + 2468274456.

It is an arithmetic number, because the mean of its divisors is an integer number (25505502464).

Almost surely, 2^123413721575 is an apocalyptic number.

123413721575 is a deficient number, since it is larger than the sum of its proper divisors (29619293209).

123413721575 is an equidigital number, since it uses as much as digits as its factorization.

123413721575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936548873 (or 4936548868 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The spelling of 123413721575 in words is "one hundred twenty-three billion, four hundred thirteen million, seven hundred twenty-one thousand, five hundred seventy-five".