11031131322012 has 24 divisors (see below), whose sum is σ = 25742551226896. Its totient is φ = 3676580229888.

The previous prime is 11031131322011. The next prime is 11031131322053. The reversal of 11031131322012 is 21022313113011.

It is a self number, because there is not a number n which added to its sum of digits gives 11031131322012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031131322011) 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, 57843853 + ... + 58034244.

Almost surely, 2^{11031131322012} is an apocalyptic number.

11031131322012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11031131322012 is an abundant number, since it is smaller than the sum of its proper divisors (14711419904884).

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

11031131322012 is a wasteful number, since it uses less digits than its factorization.

11031131322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115886037 (or 115886035 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11031131322012 its reverse (21022313113011), we get a palindrome (32053444435023).

The spelling of 11031131322012 in words is "eleven trillion, thirty-one billion, one hundred thirty-one million, three hundred twenty-two thousand, twelve".