231252424000 has 112 divisors (see below), whose sum is σ = 616750492176. Its totient is φ = 85385472000.

The previous prime is 231252423979. The next prime is 231252424019. The reversal of 231252424000 is 424252132.

It can be written as a sum of positive squares in 8 ways, for example, as 43340577856 + 187911846144 = 208184^2 + 433488^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007791 + ... + 1215790.

It is an arithmetic number, because the mean of its divisors is an integer number (5506700823).

Almost surely, 2^231252424000 is an apocalyptic number.

231252424000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231252424000 is an abundant number, since it is smaller than the sum of its proper divisors (385498068176).

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

231252424000 is a wasteful number, since it uses less digits than its factorization.

231252424000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223621 (or 2223601 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 231252424000 its reverse (424252132), we get a palindrome (231676676132).

The spelling of 231252424000 in words is "two hundred thirty-one billion, two hundred fifty-two million, four hundred twenty-four thousand".