2015109120 has 336 divisors, whose sum is σ = 6957925632. Its totient is φ = 497418240.

The previous prime is 2015109119. The next prime is 2015109139. The reversal of 2015109120 is 219015102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65003505 + ... + 65003535.

It is an arithmetic number, because the mean of its divisors is an integer number (20708112).

Almost surely, 2^2015109120 is an apocalyptic number.

2015109120 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 2015109120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3478962816).

2015109120 is an abundant number, since it is smaller than the sum of its proper divisors (4942816512).

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

2015109120 is an equidigital number, since it uses as much as digits as its factorization.

2015109120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 2015109120 is about 44889.9668077400. The cubic root of 2015109120 is about 1263.0858101554.

The spelling of 2015109120 in words is "two billion, fifteen million, one hundred nine thousand, one hundred twenty".