231724065232 has 80 divisors (see below), whose sum is σ = 507844370880. Its totient is φ = 101461248000.

The previous prime is 231724065217. The next prime is 231724065283. The reversal of 231724065232 is 232560427132.

It is a junction number, because it is equal to n+sod(n) for n = 231724065191 and 231724065200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2157607 + ... + 2262457.

It is an arithmetic number, because the mean of its divisors is an integer number (6348054636).

Almost surely, 2^231724065232 is an apocalyptic number.

231724065232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231724065232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253922185440).

231724065232 is an abundant number, since it is smaller than the sum of its proper divisors (276120305648).

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

231724065232 is a wasteful number, since it uses less digits than its factorization.

231724065232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105332 (or 105326 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 231724065232 in words is "two hundred thirty-one billion, seven hundred twenty-four million, sixty-five thousand, two hundred thirty-two".