231010230400 has 96 divisors (see below), whose sum is σ = 571281354180. Its totient is φ = 92304691200.

The previous prime is 231010230389. The next prime is 231010230443. The reversal of 231010230400 is 4032010132.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 131815468096 + 99194762304 = 363064^2 + 314952^2 .

It is a super-2 number, since 2×231010230400² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2972842 + ... + 3049558.

Almost surely, 2^231010230400 is an apocalyptic number.

231010230400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231010230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285640677090).

231010230400 is an abundant number, since it is smaller than the sum of its proper divisors (340271123780).

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

231010230400 is an equidigital number, since it uses as much as digits as its factorization.

231010230400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77682 (or 77665 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 231010230400 its reverse (4032010132), we get a palindrome (235042240532).

The spelling of 231010230400 in words is "two hundred thirty-one billion, ten million, two hundred thirty thousand, four hundred".