23231647380 has 96 divisors (see below), whose sum is σ = 67403685888. Its totient is φ = 5972342400.

The previous prime is 23231647379. The next prime is 23231647409. The reversal of 23231647380 is 8374613232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465435 + ... + 512925.

It is an arithmetic number, because the mean of its divisors is an integer number (702121728).

Almost surely, 2^23231647380 is an apocalyptic number.

23231647380 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 23231647380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33701842944).

23231647380 is an abundant number, since it is smaller than the sum of its proper divisors (44172038508).

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

23231647380 is a wasteful number, since it uses less digits than its factorization.

23231647380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47797 (or 47795 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 23231647380 in words is "twenty-three billion, two hundred thirty-one million, six hundred forty-seven thousand, three hundred eighty".