11311121322 has 12 divisors (see below), whose sum is σ = 24507429570. Its totient is φ = 3770373768.

The previous prime is 11311121317. The next prime is 11311121333. The reversal of 11311121322 is 22312111311.

11311121322 is a `hidden beast` number, since 11 + 311 + 1 + 21 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6299755641 + 5011365681 = 79371^2 + 70791^2 .

It is a super-2 number, since 2×11311121322² (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), and also a Moran number because the ratio is a prime number: 628395629 = 11311121322 / (1 + 1 + 3 + 1 + 1 + 1 + 2 + 1 + 3 + 2 + 2).

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 = 11311121295 and 11311121304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314197797 + ... + 314197832.

Almost surely, 2^11311121322 is an apocalyptic number.

11311121322 is an abundant number, since it is smaller than the sum of its proper divisors (13196308248).

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

11311121322 is a wasteful number, since it uses less digits than its factorization.

11311121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628395637 (or 628395634 counting only the distinct ones).

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

Adding to 11311121322 its reverse (22312111311), we get a palindrome (33623232633).

The spelling of 11311121322 in words is "eleven billion, three hundred eleven million, one hundred twenty-one thousand, three hundred twenty-two".