13012435252 has 6 divisors (see below), whose sum is σ = 22771761698. Its totient is φ = 6506217624.

The previous prime is 13012435237. The next prime is 13012435253. The reversal of 13012435252 is 25253421031.

It can be written as a sum of positive squares in only one way, i.e., 11978426916 + 1034008336 = 109446^2 + 32156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13012435252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012435253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626554403 + ... + 1626554410.

Almost surely, 2^13012435252 is an apocalyptic number.

It is an amenable number.

13012435252 is a deficient number, since it is larger than the sum of its proper divisors (9759326446).

13012435252 is a wasteful number, since it uses less digits than its factorization.

13012435252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253108817 (or 3253108815 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13012435252 its reverse (25253421031), we get a palindrome (38265856283).

The spelling of 13012435252 in words is "thirteen billion, twelve million, four hundred thirty-five thousand, two hundred fifty-two".