11211775357 has 2 divisors, whose sum is σ = 11211775358. Its totient is φ = 11211775356.

The previous prime is 11211775319. The next prime is 11211775391. The reversal of 11211775357 is 75357711211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10596437721 + 615337636 = 102939^2 + 24806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211775357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211775307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605887678 + 5605887679.

It is an arithmetic number, because the mean of its divisors is an integer number (5605887679).

Almost surely, 2^11211775357 is an apocalyptic number.

It is an amenable number.

11211775357 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211775357 is an equidigital number, since it uses as much as digits as its factorization.

11211775357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51450, while the sum is 40.

The spelling of 11211775357 in words is "eleven billion, two hundred eleven million, seven hundred seventy-five thousand, three hundred fifty-seven".