11312231132 has 12 divisors (see below), whose sum is σ = 20120936136. Its totient is φ = 5563392240.

The previous prime is 11312231123. The next prime is 11312231159. The reversal of 11312231132 is 23113221311.

It is a happy 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, 23180558 + ... + 23181045.

It is an arithmetic number, because the mean of its divisors is an integer number (1676744678).

Almost surely, 2^11312231132 is an apocalyptic number.

It is an amenable number.

11312231132 is a deficient number, since it is larger than the sum of its proper divisors (8808705004).

11312231132 is a wasteful number, since it uses less digits than its factorization.

11312231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46361668 (or 46361666 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 11312231132 its reverse (23113221311), we get a palindrome (34425452443).

The spelling of 11312231132 in words is "eleven billion, three hundred twelve million, two hundred thirty-one thousand, one hundred thirty-two".