231465020 has 12 divisors (see below), whose sum is σ = 486076584. Its totient is φ = 92586000.

The previous prime is 231464977. The next prime is 231465071. The reversal of 231465020 is 20564132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5786606 + ... + 5786645.

It is an arithmetic number, because the mean of its divisors is an integer number (40506382).

Almost surely, 2^231465020 is an apocalyptic number.

231465020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231465020 is an abundant number, since it is smaller than the sum of its proper divisors (254611564).

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

231465020 is a wasteful number, since it uses less digits than its factorization.

231465020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573260 (or 11573258 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 231465020 is about 15213.9744971523. The cubic root of 231465020 is about 613.9906947205.

The spelling of 231465020 in words is "two hundred thirty-one million, four hundred sixty-five thousand, twenty".