123233631 has 8 divisors (see below), whose sum is σ = 164552064. Its totient is φ = 82035480.

The previous prime is 123233623. The next prime is 123233653. The reversal of 123233631 is 136332321.

It is a happy number.

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

It is not a de Polignac number, because 123233631 - 2³ = 123233623 is a prime.

It is a super-2 number, since 2×123233631² = 30373055618888322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233611) 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, 27651 + ... + 31796.

It is an arithmetic number, because the mean of its divisors is an integer number (20569008).

Almost surely, 2^123233631 is an apocalyptic number.

123233631 is a deficient number, since it is larger than the sum of its proper divisors (41318433).

123233631 is an equidigital number, since it uses as much as digits as its factorization.

123233631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60141.

The product of its digits is 1944, while the sum is 24.

The square root of 123233631 is about 11101.0644084250. The cubic root of 123233631 is about 497.6336598694.

Adding to 123233631 its reverse (136332321), we get a palindrome (259565952).

The spelling of 123233631 in words is "one hundred twenty-three million, two hundred thirty-three thousand, six hundred thirty-one".