231322927680 has 672 divisors, whose sum is σ = 935738438400. Its totient is φ = 53585805312.

The previous prime is 231322927679. The next prime is 231322927687. The reversal of 231322927680 is 86729223132.

231322927680 is a `hidden beast` number, since 231 + 322 + 92 + 7 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (231322927687) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24818061 + ... + 24827379.

Almost surely, 2^231322927680 is an apocalyptic number.

231322927680 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 231322927680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467869219200).

231322927680 is an abundant number, since it is smaller than the sum of its proper divisors (704415510720).

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

231322927680 is a wasteful number, since it uses less digits than its factorization.

231322927680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9388 (or 9359 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 231322927680 in words is "two hundred thirty-one billion, three hundred twenty-two million, nine hundred twenty-seven thousand, six hundred eighty".