231444400100 has 36 divisors (see below), whose sum is σ = 502370999844. Its totient is φ = 92552570880.

The previous prime is 231444400081. The next prime is 231444400127. The reversal of 231444400100 is 1004444132.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 25894602724 + 205549797376 = 160918^2 + 453376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56684 + ... + 682716.

Almost surely, 2^231444400100 is an apocalyptic number.

231444400100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231444400100 is an abundant number, since it is smaller than the sum of its proper divisors (270926599744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231444400100 is a wasteful number, since it uses less digits than its factorization.

231444400100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629744 (or 629737 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 231444400100 its reverse (1004444132), we get a palindrome (232448844232).

It can be divided in two parts, 23144 and 4400100, that added together give a palindrome (4423244).

The spelling of 231444400100 in words is "two hundred thirty-one billion, four hundred forty-four million, four hundred thousand, one hundred".