11311243132 has 12 divisors (see below), whose sum is σ = 22622486320. Its totient is φ = 4847675616.

The previous prime is 11311243123. The next prime is 11311243159. The reversal of 11311243132 is 23134211311.

11311243132 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201986457 + ... + 201986512.

Almost surely, 2^11311243132 is an apocalyptic number.

It is an amenable number.

11311243132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11311243132 is a wasteful number, since it uses less digits than its factorization.

11311243132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403972980 (or 403972978 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 11311243132 its reverse (23134211311), we get a palindrome (34445454443).

The spelling of 11311243132 in words is "eleven billion, three hundred eleven million, two hundred forty-three thousand, one hundred thirty-two".