13243203522 has 24 divisors (see below), whose sum is σ = 28699549164. Its totient is φ = 4413487104.

The previous prime is 13243203469. The next prime is 13243203551. The reversal of 13243203522 is 22530234231.

13243203522 is a `hidden beast` number, since 132 + 4 + 3 + 2 + 0 + 3 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11356951761 + 1886251761 = 106569^2 + 43431^2 .

It is a super-2 number, since 2×13243203522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16198 + ... + 163550.

Almost surely, 2^13243203522 is an apocalyptic number.

13243203522 is an abundant number, since it is smaller than the sum of its proper divisors (15456345642).

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

13243203522 is a wasteful number, since it uses less digits than its factorization.

13243203522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152354 (or 152351 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 13243203522 its reverse (22530234231), we get a palindrome (35773437753).

The spelling of 13243203522 in words is "thirteen billion, two hundred forty-three million, two hundred three thousand, five hundred twenty-two".