11131031322 has 12 divisors (see below), whose sum is σ = 24117234570. Its totient is φ = 3710343768.

The previous prime is 11131031321. The next prime is 11131031339. The reversal of 11131031322 is 22313013111.

11131031322 is a `hidden beast` number, since 1 + 1 + 1 + 310 + 31 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10235166561 + 895864761 = 101169^2 + 29931^2 .

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: 618390629 = 11131031322 / (1 + 1 + 1 + 3 + 1 + 0 + 3 + 1 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 11131031295 and 11131031304.

It is not an unprimeable number, because it can be changed into a prime (11131031321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309195297 + ... + 309195332.

Almost surely, 2^11131031322 is an apocalyptic number.

11131031322 is an abundant number, since it is smaller than the sum of its proper divisors (12986203248).

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

11131031322 is a wasteful number, since it uses less digits than its factorization.

11131031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618390637 (or 618390634 counting only the distinct ones).

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

Adding to 11131031322 its reverse (22313013111), we get a palindrome (33444044433).

The spelling of 11131031322 in words is "eleven billion, one hundred thirty-one million, thirty-one thousand, three hundred twenty-two".