12311132202 has 24 divisors (see below), whose sum is σ = 26995497984. Its totient is φ = 4054267944.

The previous prime is 12311132167. The next prime is 12311132209. The reversal of 12311132202 is 20223111321.

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 (12311132209) by changing a digit.

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, 4118698 + ... + 4121685.

It is an arithmetic number, because the mean of its divisors is an integer number (1124812416).

Almost surely, 2^12311132202 is an apocalyptic number.

12311132202 is an abundant number, since it is smaller than the sum of its proper divisors (14684365782).

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

12311132202 is a wasteful number, since it uses less digits than its factorization.

12311132202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240474 (or 8240471 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12311132202 its reverse (20223111321), we get a palindrome (32534243523).

The spelling of 12311132202 in words is "twelve billion, three hundred eleven million, one hundred thirty-two thousand, two hundred two".