231244323400 has 48 divisors (see below), whose sum is σ = 537983424000. Its totient is φ = 92439170880.

The previous prime is 231244323379. The next prime is 231244323419. The reversal of 231244323400 is 4323442132.

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, 48600 + ... + 681799.

It is an arithmetic number, because the mean of its divisors is an integer number (11207988000).

Almost surely, 2^231244323400 is an apocalyptic number.

231244323400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231244323400 is an abundant number, since it is smaller than the sum of its proper divisors (306739100600).

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

231244323400 is a wasteful number, since it uses less digits than its factorization.

231244323400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731998 (or 731989 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 231244323400 its reverse (4323442132), we get a palindrome (235567765532).

The spelling of 231244323400 in words is "two hundred thirty-one billion, two hundred forty-four million, three hundred twenty-three thousand, four hundred".