231554247891120 has 960 divisors, whose sum is σ = 1020796603407360. Its totient is φ = 45571689676800.

The previous prime is 231554247891061. The next prime is 231554247891133. The reversal of 231554247891120 is 21198742455132.

231554247891120 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 5 + 42 + 478 + 9 + 1 + 120 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4720081632 + ... + 4720130688.

It is an arithmetic number, because the mean of its divisors is an integer number (1063329795216).

Almost surely, 2^{231554247891120} is an apocalyptic number.

231554247891120 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 231554247891120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510398301703680).

231554247891120 is an abundant number, since it is smaller than the sum of its proper divisors (789242355516240).

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

231554247891120 is a wasteful number, since it uses less digits than its factorization.

231554247891120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53594 (or 53585 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 231554247891120 in words is "two hundred thirty-one trillion, five hundred fifty-four billion, two hundred forty-seven million, eight hundred ninety-one thousand, one hundred twenty".