231240107952 has 120 divisors (see below), whose sum is σ = 739941465120. Its totient is φ = 66038215680.

The previous prime is 231240107911. The next prime is 231240107957. The reversal of 231240107952 is 259701042132.

It is a super-2 number, since 2×231240107952² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (231240107957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2187124 + ... + 2290412.

It is an arithmetic number, because the mean of its divisors is an integer number (6166178876).

Almost surely, 2^231240107952 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 231240107952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369970732560).

231240107952 is an abundant number, since it is smaller than the sum of its proper divisors (508701357168).

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

231240107952 is a wasteful number, since it uses less digits than its factorization.

231240107952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105531 (or 105522 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 231240107952 in words is "two hundred thirty-one billion, two hundred forty million, one hundred seven thousand, nine hundred fifty-two".