231152012 has 72 divisors (see below), whose sum is σ = 513331056. Its totient is φ = 90260352.

The previous prime is 231152003. The next prime is 231152021. The reversal of 231152012 is 210251132.

It is a happy number.

231152012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231152003) and next prime (231152021).

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, 210938 + ... + 212030.

It is an arithmetic number, because the mean of its divisors is an integer number (7129598).

Almost surely, 2^231152012 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 231152012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256665528).

231152012 is an abundant number, since it is smaller than the sum of its proper divisors (282179044).

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

231152012 is a wasteful number, since it uses less digits than its factorization.

231152012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 231152012 is about 15203.6841587820. The cubic root of 231152012 is about 613.7138052304.

The spelling of 231152012 in words is "two hundred thirty-one million, one hundred fifty-two thousand, twelve".