11311221364 has 12 divisors (see below), whose sum is σ = 20477211300. Its totient is φ = 5460589568.

The previous prime is 11311221307. The next prime is 11311221373. The reversal of 11311221364 is 46312211311.

It can be written as a sum of positive squares in 2 ways, for example, as 7175445264 + 4135776100 = 84708^2 + 64310^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48755149 + ... + 48755380.

It is an arithmetic number, because the mean of its divisors is an integer number (1706434275).

Almost surely, 2^11311221364 is an apocalyptic number.

It is an amenable number.

11311221364 is a deficient number, since it is larger than the sum of its proper divisors (9165989936).

11311221364 is a wasteful number, since it uses less digits than its factorization.

11311221364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97510562 (or 97510560 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 11311221364 its reverse (46312211311), we get a palindrome (57623432675).

The spelling of 11311221364 in words is "eleven billion, three hundred eleven million, two hundred twenty-one thousand, three hundred sixty-four".