11312021021068 has 24 divisors (see below), whose sum is σ = 20764884510720. Its totient is φ = 5381771886480.

The previous prime is 11312021021057. The next prime is 11312021021069. The reversal of 11312021021068 is 86012012021311.

It is not an unprimeable number, because it can be changed into a prime (11312021021069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321858738 + ... + 321893881.

It is an arithmetic number, because the mean of its divisors is an integer number (865203521280).

Almost surely, 2^{11312021021068} is an apocalyptic number.

It is an amenable number.

11312021021068 is a deficient number, since it is larger than the sum of its proper divisors (9452863489652).

11312021021068 is a wasteful number, since it uses less digits than its factorization.

11312021021068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643752837 (or 643752835 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 11312021021068 its reverse (86012012021311), we get a palindrome (97324033042379).

The spelling of 11312021021068 in words is "eleven trillion, three hundred twelve billion, twenty-one million, twenty-one thousand, sixty-eight".