23313249920 has 128 divisors (see below), whose sum is σ = 58619220480. Its totient is φ = 8853811200.

The previous prime is 23313249881. The next prime is 23313249961. The reversal of 23313249920 is 2994231332.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040435 + ... + 1062605.

It is an arithmetic number, because the mean of its divisors is an integer number (457962660).

Almost surely, 2^23313249920 is an apocalyptic number.

23313249920 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 23313249920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29309610240).

23313249920 is an abundant number, since it is smaller than the sum of its proper divisors (35305970560).

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

23313249920 is a wasteful number, since it uses less digits than its factorization.

23313249920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22274 (or 22262 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The spelling of 23313249920 in words is "twenty-three billion, three hundred thirteen million, two hundred forty-nine thousand, nine hundred twenty".