11311022312 has 16 divisors (see below), whose sum is σ = 21210866340. Its totient is φ = 5654791296.

The previous prime is 11311022311. The next prime is 11311022341. The reversal of 11311022312 is 21322011311.

It can be written as a sum of positive squares in 2 ways, for example, as 11294163076 + 16859236 = 106274^2 + 4106^2 .

It is not an unprimeable number, because it can be changed into a prime (11311022311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20003 + ... + 151730.

Almost surely, 2^11311022312 is an apocalyptic number.

It is an amenable number.

11311022312 is a deficient number, since it is larger than the sum of its proper divisors (9899844028).

11311022312 is a wasteful number, since it uses less digits than its factorization.

11311022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179972 (or 179968 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11311022312 its reverse (21322011311), we get a palindrome (32633033623).

The spelling of 11311022312 in words is "eleven billion, three hundred eleven million, twenty-two thousand, three hundred twelve".