623236231631 has 8 divisors (see below), whose sum is σ = 694321531680. Its totient is φ = 555457224672.

The previous prime is 623236231619. The next prime is 623236231643. The reversal of 623236231631 is 136132632326.

623236231631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (623236231619) and next prime (623236231643).

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

It is a cyclic number.

It is not a de Polignac number, because 623236231631 - 2⁶ = 623236231567 is a prime.

It is a super-2 number, since 2×623236231631² (a number of 24 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 (623236231601) 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, 826572875 + ... + 826573628.

It is an arithmetic number, because the mean of its divisors is an integer number (86790191460).

Almost surely, 2^623236231631 is an apocalyptic number.

623236231631 is a deficient number, since it is larger than the sum of its proper divisors (71085300049).

623236231631 is a wasteful number, since it uses less digits than its factorization.

623236231631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653146545.

The product of its digits is 139968, while the sum is 38.

Adding to 623236231631 its reverse (136132632326), we get a palindrome (759368863957).

The spelling of 623236231631 in words is "six hundred twenty-three billion, two hundred thirty-six million, two hundred thirty-one thousand, six hundred thirty-one".