2115903130 has 64 divisors (see below), whose sum is σ = 4427903232. Its totient is φ = 719447040.

The previous prime is 2115903103. The next prime is 2115903131. The reversal of 2115903130 is 313095112.

It is a junction number, because it is equal to n+sod(n) for n = 2115903095 and 2115903104.

It is not an unprimeable number, because it can be changed into a prime (2115903131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289987 + ... + 297193.

It is an arithmetic number, because the mean of its divisors is an integer number (69185988).

Almost surely, 2^2115903130 is an apocalyptic number.

2115903130 is an abundant number, since it is smaller than the sum of its proper divisors (2312000102).

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

2115903130 is a wasteful number, since it uses less digits than its factorization.

2115903130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7399.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 2115903130 is about 45998.9470531663. The cubic root of 2115903130 is about 1283.8036132552.

Adding to 2115903130 its reverse (313095112), we get a palindrome (2428998242).

The spelling of 2115903130 in words is "two billion, one hundred fifteen million, nine hundred three thousand, one hundred thirty".