11121100993 has 2 divisors, whose sum is σ = 11121100994. Its totient is φ = 11121100992.

The previous prime is 11121100981. The next prime is 11121100997. The reversal of 11121100993 is 39900112111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7948257409 + 3172843584 = 89153^2 + 56328^2 .

It is an emirp because it is prime and its reverse (39900112111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121100993 is a prime.

It is not a weakly prime, because it can be changed into another prime (11121100997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560550496 + 5560550497.

It is an arithmetic number, because the mean of its divisors is an integer number (5560550497).

Almost surely, 2^11121100993 is an apocalyptic number.

It is an amenable number.

11121100993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121100993 is an equidigital number, since it uses as much as digits as its factorization.

11121100993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 28.

The spelling of 11121100993 in words is "eleven billion, one hundred twenty-one million, one hundred thousand, nine hundred ninety-three".