11170393600921 has 2 divisors, whose sum is σ = 11170393600922. Its totient is φ = 11170393600920.

The previous prime is 11170393600819. The next prime is 11170393600943. The reversal of 11170393600921 is 12900639307111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8904733446400 + 2265660154521 = 2984080^2 + 1505211^2 .

It is an emirp because it is prime and its reverse (12900639307111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11170393600921 - 2²⁷ = 11170259383193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11170393400921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5585196800460 + 5585196800461.

It is an arithmetic number, because the mean of its divisors is an integer number (5585196800461).

Almost surely, 2^{11170393600921} is an apocalyptic number.

It is an amenable number.

11170393600921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11170393600921 is an equidigital number, since it uses as much as digits as its factorization.

11170393600921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 11170393600921 in words is "eleven trillion, one hundred seventy billion, three hundred ninety-three million, six hundred thousand, nine hundred twenty-one".