13012043225 has 12 divisors (see below), whose sum is σ = 16277724156. Its totient is φ = 10317511680.

The previous prime is 13012043221. The next prime is 13012043227. The reversal of 13012043225 is 52234021031.

It can be written as a sum of positive squares in 6 ways, for example, as 7359409369 + 5652633856 = 85787^2 + 75184^2 .

It is not a de Polignac number, because 13012043225 - 2² = 13012043221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13012043225.

It is not an unprimeable number, because it can be changed into a prime (13012043221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2300192 + ... + 2305841.

It is an arithmetic number, because the mean of its divisors is an integer number (1356477013).

Almost surely, 2^13012043225 is an apocalyptic number.

It is an amenable number.

13012043225 is a deficient number, since it is larger than the sum of its proper divisors (3265680931).

13012043225 is a wasteful number, since it uses less digits than its factorization.

13012043225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606156 (or 4606151 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 13012043225 its reverse (52234021031), we get a palindrome (65246064256).

The spelling of 13012043225 in words is "thirteen billion, twelve million, forty-three thousand, two hundred twenty-five".