123701555462531 has 4 divisors (see below), whose sum is σ = 124416593355552. Its totient is φ = 122986517569512.

The previous prime is 123701555462501. The next prime is 123701555462539. The reversal of 123701555462531 is 135264555107321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 123701555462531 - 2⁶ = 123701555462467 is a prime.

It is a super-2 number, since 2×123701555462531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123701555462531.

It is not an unprimeable number, because it can be changed into a prime (123701555462539) 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, 357518946251 + ... + 357518946596.

It is an arithmetic number, because the mean of its divisors is an integer number (31104148338888).

Almost surely, 2^{123701555462531} is an apocalyptic number.

123701555462531 is a deficient number, since it is larger than the sum of its proper divisors (715037893021).

123701555462531 is an equidigital number, since it uses as much as digits as its factorization.

123701555462531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715037893020.

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 123701555462531 in words is "one hundred twenty-three trillion, seven hundred one billion, five hundred fifty-five million, four hundred sixty-two thousand, five hundred thirty-one".