13111133202 has 40 divisors (see below), whose sum is σ = 29406521100. Its totient is φ = 4366231776.

The previous prime is 13111133183. The next prime is 13111133209. The reversal of 13111133202 is 20233111131.

It can be written as a sum of positive squares in 2 ways, for example, as 12678534801 + 432598401 = 112599^2 + 20799^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13111133209) 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 in 19 ways as a sum of consecutive naturals, for example, 135324 + ... + 211032.

Almost surely, 2^13111133202 is an apocalyptic number.

13111133202 is an abundant number, since it is smaller than the sum of its proper divisors (16295387898).

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

13111133202 is a wasteful number, since it uses less digits than its factorization.

13111133202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76792 (or 76783 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13111133202 its reverse (20233111131), we get a palindrome (33344244333).

The spelling of 13111133202 in words is "thirteen billion, one hundred eleven million, one hundred thirty-three thousand, two hundred two".