13103112225 has 24 divisors (see below), whose sum is σ = 24758643520. Its totient is φ = 5989993920.

The previous prime is 13103112221. The next prime is 13103112233. The reversal of 13103112225 is 52221130131.

It is not a de Polignac number, because 13103112225 - 2² = 13103112221 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 (13103112221) 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, 12478630 + ... + 12479679.

Almost surely, 2^13103112225 is an apocalyptic number.

13103112225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13103112225 is a deficient number, since it is larger than the sum of its proper divisors (11655531295).

13103112225 is a wasteful number, since it uses less digits than its factorization.

13103112225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24958329 (or 24958324 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 13103112225 its reverse (52221130131), we get a palindrome (65324242356).

The spelling of 13103112225 in words is "thirteen billion, one hundred three million, one hundred twelve thousand, two hundred twenty-five".