11231031132 has 48 divisors (see below), whose sum is σ = 29346795520. Its totient is φ = 3714194736.

The previous prime is 11231031121. The next prime is 11231031139. The reversal of 11231031132 is 23113013211.

11231031132 is a `hidden beast` number, since 1 + 12 + 310 + 311 + 32 = 666.

It is a super-2 number, since 2×11231031132² (a number of 21 digits) contains 22 as substring.

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 (11231031139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395698 + ... + 423129.

Almost surely, 2^11231031132 is an apocalyptic number.

11231031132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11231031132 is an abundant number, since it is smaller than the sum of its proper divisors (18115764388).

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

11231031132 is a wasteful number, since it uses less digits than its factorization.

11231031132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818967 (or 818959 counting only the distinct ones).

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

Adding to 11231031132 its reverse (23113013211), we get a palindrome (34344044343).

The spelling of 11231031132 in words is "eleven billion, two hundred thirty-one million, thirty-one thousand, one hundred thirty-two".