2103312225 has 24 divisors (see below), whose sum is σ = 3974259520. Its totient is φ = 961513920.

The previous prime is 2103312209. The next prime is 2103312227. The reversal of 2103312225 is 5222133012.

It is not a de Polignac number, because 2103312225 - 2⁴ = 2103312209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2103312227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2002630 + ... + 2003679.

Almost surely, 2^2103312225 is an apocalyptic number.

2103312225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2103312225 is a deficient number, since it is larger than the sum of its proper divisors (1870947295).

2103312225 is a wasteful number, since it uses less digits than its factorization.

2103312225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006329 (or 4006324 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2103312225 is about 45861.8820481672. The cubic root of 2103312225 is about 1281.2520758245.

Adding to 2103312225 its reverse (5222133012), we get a palindrome (7325445237).

The spelling of 2103312225 in words is "two billion, one hundred three million, three hundred twelve thousand, two hundred twenty-five".