231357312 has 96 divisors (see below), whose sum is σ = 680078880. Its totient is φ = 75460608.

The previous prime is 231357293. The next prime is 231357341. The reversal of 231357312 is 213753132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52008 + ... + 56280.

It is an arithmetic number, because the mean of its divisors is an integer number (7084155).

Almost surely, 2^231357312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231357312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340039440).

231357312 is an abundant number, since it is smaller than the sum of its proper divisors (448721568).

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

231357312 is a wasteful number, since it uses less digits than its factorization.

231357312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340 (or 4325 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 231357312 is about 15210.4343133258. The cubic root of 231357312 is about 613.8954435098.

The spelling of 231357312 in words is "two hundred thirty-one million, three hundred fifty-seven thousand, three hundred twelve".