231402431200 has 72 divisors (see below), whose sum is σ = 565204840200. Its totient is φ = 92512857600.

The previous prime is 231402431159. The next prime is 231402431207. The reversal of 231402431200 is 2134204132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231402431207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1484995 + ... + 1633405.

It is an arithmetic number, because the mean of its divisors is an integer number (7850067225).

Almost surely, 2^231402431200 is an apocalyptic number.

231402431200 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 231402431200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282602420100).

231402431200 is an abundant number, since it is smaller than the sum of its proper divisors (333802409000).

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

231402431200 is a wasteful number, since it uses less digits than its factorization.

231402431200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150380 (or 150367 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 231402431200 its reverse (2134204132), we get a palindrome (233536635332).

The spelling of 231402431200 in words is "two hundred thirty-one billion, four hundred two million, four hundred thirty-one thousand, two hundred".