231326345580 has 576 divisors, whose sum is σ = 790741647360. Its totient is φ = 50276160000.

The previous prime is 231326345491. The next prime is 231326345603. The reversal of 231326345580 is 85543623132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 200978005 + ... + 200979155.

It is an arithmetic number, because the mean of its divisors is an integer number (1372815360).

Almost surely, 2^231326345580 is an apocalyptic number.

231326345580 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 231326345580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395370823680).

231326345580 is an abundant number, since it is smaller than the sum of its proper divisors (559415301780).

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

231326345580 is a wasteful number, since it uses less digits than its factorization.

231326345580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 231326345580 in words is "two hundred thirty-one billion, three hundred twenty-six million, three hundred forty-five thousand, five hundred eighty".