23130578328 has 128 divisors (see below), whose sum is σ = 70127769600. Its totient is φ = 6261350400.

The previous prime is 23130578311. The next prime is 23130578363. The reversal of 23130578328 is 82387503132.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23130578328.

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, 2313 + ... + 215096.

It is an arithmetic number, because the mean of its divisors is an integer number (547873200).

Almost surely, 2^23130578328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23130578328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35063884800).

23130578328 is an abundant number, since it is smaller than the sum of its proper divisors (46997191272).

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

23130578328 is a wasteful number, since it uses less digits than its factorization.

23130578328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217473 (or 217469 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 23130578328 in words is "twenty-three billion, one hundred thirty million, five hundred seventy-eight thousand, three hundred twenty-eight".