11311132122 has 24 divisors (see below), whose sum is σ = 24516214164. Its totient is φ = 3769029504.

The previous prime is 11311132093. The next prime is 11311132171. The reversal of 11311132122 is 22123111311.

11311132122 is a `hidden beast` number, since 11 + 311 + 1 + 321 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11089985481 + 221146641 = 105309^2 + 14871^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11311132095 and 11311132104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59913 + ... + 161900.

Almost surely, 2^11311132122 is an apocalyptic number.

11311132122 is an abundant number, since it is smaller than the sum of its proper divisors (13205082042).

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

11311132122 is a wasteful number, since it uses less digits than its factorization.

11311132122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224654 (or 224651 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11311132122 its reverse (22123111311), we get a palindrome (33434243433).

The spelling of 11311132122 in words is "eleven billion, three hundred eleven million, one hundred thirty-two thousand, one hundred twenty-two".