15100030020 has 48 divisors (see below), whose sum is σ = 44767150848. Its totient is φ = 3789811200.

The previous prime is 15100030013. The next prime is 15100030087. The reversal of 15100030020 is 2003000151.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 15100029978 and 15100030005.

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, 7400956 + ... + 7402995.

It is an arithmetic number, because the mean of its divisors is an integer number (932648976).

Almost surely, 2^15100030020 is an apocalyptic number.

15100030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15100030020 is an abundant number, since it is smaller than the sum of its proper divisors (29667120828).

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

15100030020 is a wasteful number, since it uses less digits than its factorization.

15100030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14803980 (or 14803978 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

Adding to 15100030020 its reverse (2003000151), we get a palindrome (17103030171).

The spelling of 15100030020 in words is "fifteen billion, one hundred million, thirty thousand, twenty".