123612243775 has 12 divisors (see below), whose sum is σ = 157017700224. Its totient is φ = 96477848000.

The previous prime is 123612243757. The next prime is 123612243779. The reversal of 123612243775 is 577342216321.

It is not a de Polignac number, because 123612243775 - 2²⁵ = 123578689343 is a prime.

It is a super-2 number, since 2×123612243775² (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 (123612243779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60297631 + ... + 60299680.

It is an arithmetic number, because the mean of its divisors is an integer number (13084808352).

Almost surely, 2^123612243775 is an apocalyptic number.

123612243775 is a deficient number, since it is larger than the sum of its proper divisors (33405456449).

123612243775 is a wasteful number, since it uses less digits than its factorization.

123612243775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120597362 (or 120597357 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The spelling of 123612243775 in words is "one hundred twenty-three billion, six hundred twelve million, two hundred forty-three thousand, seven hundred seventy-five".