11131231302 has 32 divisors (see below), whose sum is σ = 24798424800. Its totient is φ = 3701057184.

The previous prime is 11131231297. The next prime is 11131231303. The reversal of 11131231302 is 20313213111.

11131231302 is a `hidden beast` number, since 1 + 1 + 131 + 231 + 302 = 666.

11131231302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131231303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238177 + ... + 281052.

It is an arithmetic number, because the mean of its divisors is an integer number (774950775).

Almost surely, 2^11131231302 is an apocalyptic number.

11131231302 is an abundant number, since it is smaller than the sum of its proper divisors (13667193498).

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

11131231302 is a wasteful number, since it uses less digits than its factorization.

11131231302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519637 (or 519631 counting only the distinct ones).

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

Adding to 11131231302 its reverse (20313213111), we get a palindrome (31444444413).

The spelling of 11131231302 in words is "eleven billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred two".