30231100928 has 80 divisors (see below), whose sum is σ = 69419306880. Its totient is φ = 12883531776.

The previous prime is 30231100927. The next prime is 30231101053. The reversal of 30231100928 is 82900113203.

It is a super-2 number, since 2×30231100928² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30231100928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231100927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617975 + ... + 665097.

It is an arithmetic number, because the mean of its divisors is an integer number (867741336).

Almost surely, 2^30231100928 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 30231100928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34709653440).

30231100928 is an abundant number, since it is smaller than the sum of its proper divisors (39188205952).

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

30231100928 is an equidigital number, since it uses as much as digits as its factorization.

30231100928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47327 (or 47311 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 30231100928 in words is "thirty billion, two hundred thirty-one million, one hundred thousand, nine hundred twenty-eight".