623131131326 has 16 divisors (see below), whose sum is σ = 1019794209408. Its totient is φ = 283206677400.

The previous prime is 623131131323. The next prime is 623131131379.

623131131326 is nontrivially palindromic in base 10.

623131131326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 623131131292 and 623131131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623131131323) 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, 1553450 + ... + 1912973.

It is an arithmetic number, because the mean of its divisors is an integer number (63737138088).

Almost surely, 2^623131131326 is an apocalyptic number.

623131131326 is a deficient number, since it is larger than the sum of its proper divisors (396663078082).

623131131326 is a wasteful number, since it uses less digits than its factorization.

623131131326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474607.

The product of its digits is 11664, while the sum is 32.

It can be divided in two parts, 623131 and 131326, that added together give a palindrome (754457).

The spelling of 623131131326 in words is "six hundred twenty-three billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred twenty-six".