231240421224324 has 72 divisors (see below), whose sum is σ = 604954092041208. Its totient is φ = 74424877793280.

The previous prime is 231240421224143. The next prime is 231240421224341. The reversal of 231240421224324 is 423422124042132.

231240421224324 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 4 + 0 + 4 + 212 + 2 + 432 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16555800729924 + 214684620494400 = 4068882^2 + 14652120^2 .

It is a super-2 number, since 2×231240421224324² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 807418437 + ... + 807704780.

It is an arithmetic number, because the mean of its divisors is an integer number (8402140167239).

Almost surely, 2^{231240421224324} is an apocalyptic number.

It is an amenable number.

231240421224324 is an abundant number, since it is smaller than the sum of its proper divisors (373713670816884).

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

231240421224324 is a wasteful number, since it uses less digits than its factorization.

231240421224324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615123365 (or 1615123360 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 231240421224324 its reverse (423422124042132), we get a palindrome (654662545266456).

The spelling of 231240421224324 in words is "two hundred thirty-one trillion, two hundred forty billion, four hundred twenty-one million, two hundred twenty-four thousand, three hundred twenty-four".