231250147428720 has 640 divisors, whose sum is σ = 871709633298432. Its totient is φ = 49589828812800.

The previous prime is 231250147428659. The next prime is 231250147428841. The reversal of 231250147428720 is 27824741052132.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 231250147428720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 533551300 + ... + 533984540.

Almost surely, 2^{231250147428720} is an apocalyptic number.

231250147428720 is a gapful number since it is divisible by the number (20) 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 231250147428720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435854816649216).

231250147428720 is an abundant number, since it is smaller than the sum of its proper divisors (640459485869712).

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

231250147428720 is a wasteful number, since it uses less digits than its factorization.

231250147428720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433609 (or 433603 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 231250147428720 in words is "two hundred thirty-one trillion, two hundred fifty billion, one hundred forty-seven million, four hundred twenty-eight thousand, seven hundred twenty".