11311031132 has 24 divisors (see below), whose sum is σ = 21508247040. Its totient is φ = 5185021680.

The previous prime is 11311031131. The next prime is 11311031161. The reversal of 11311031132 is 23113011311.

It is a self number, because there is not a number n which added to its sum of digits gives 11311031132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311031131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2398118 + ... + 2402829.

It is an arithmetic number, because the mean of its divisors is an integer number (896176960).

Almost surely, 2^11311031132 is an apocalyptic number.

It is an amenable number.

11311031132 is a deficient number, since it is larger than the sum of its proper divisors (10197215908).

11311031132 is a wasteful number, since it uses less digits than its factorization.

11311031132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801001 (or 4800999 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11311031132 its reverse (23113011311), we get a palindrome (34424042443).

The spelling of 11311031132 in words is "eleven billion, three hundred eleven million, thirty-one thousand, one hundred thirty-two".