231321132024 has 64 divisors (see below), whose sum is σ = 582426324480. Its totient is φ = 76558608000.

The previous prime is 231321132017. The next prime is 231321132059. The reversal of 231321132024 is 420231123132.

It is a super-2 number, since 2×231321132024² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 231321131985 and 231321132003.

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, 2698869 + ... + 2783259.

It is an arithmetic number, because the mean of its divisors is an integer number (9100411320).

Almost surely, 2^231321132024 is an apocalyptic number.

231321132024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231321132024 is an abundant number, since it is smaller than the sum of its proper divisors (351105192456).

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

231321132024 is a wasteful number, since it uses less digits than its factorization.

231321132024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85212 (or 85208 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231321132024 its reverse (420231123132), we get a palindrome (651552255156).

The spelling of 231321132024 in words is "two hundred thirty-one billion, three hundred twenty-one million, one hundred thirty-two thousand, twenty-four".