123753327631 has 4 divisors (see below), whose sum is σ = 123789825664. Its totient is φ = 123716829600.

The previous prime is 123753327629. The next prime is 123753327707. The reversal of 123753327631 is 136723357321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136723357321 = 251 ⋅544714571.

It is a cyclic number.

It is not a de Polignac number, because 123753327631 - 2¹ = 123753327629 is a prime.

It is a super-2 number, since 2×123753327631² (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 (123753327031) 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, 18243930 + ... + 18250711.

It is an arithmetic number, because the mean of its divisors is an integer number (30947456416).

Almost surely, 2^123753327631 is an apocalyptic number.

123753327631 is a deficient number, since it is larger than the sum of its proper divisors (36498033).

123753327631 is an equidigital number, since it uses as much as digits as its factorization.

123753327631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36498032.

The product of its digits is 476280, while the sum is 43.

The spelling of 123753327631 in words is "one hundred twenty-three billion, seven hundred fifty-three million, three hundred twenty-seven thousand, six hundred thirty-one".