130023198720 has 156 divisors (see below), whose sum is σ = 450692704956. Its totient is φ = 34672803840.

The previous prime is 130023198653. The next prime is 130023198727. The reversal of 130023198720 is 27891320031.

It can be written as a sum of positive squares in 2 ways, for example, as 28807593984 + 101215604736 = 169728^2 + 318144^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (130023198727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168391 + ... + 537030.

It is an arithmetic number, because the mean of its divisors is an integer number (2889055801).

Almost surely, 2^130023198720 is an apocalyptic number.

130023198720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130023198720 is an abundant number, since it is smaller than the sum of its proper divisors (320669506236).

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

130023198720 is an equidigital number, since it uses as much as digits as its factorization.

130023198720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705456 (or 705431 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 130023198720 in words is "one hundred thirty billion, twenty-three million, one hundred ninety-eight thousand, seven hundred twenty".