11391273353 has 2 divisors, whose sum is σ = 11391273354. Its totient is φ = 11391273352.

The previous prime is 11391273347. The next prime is 11391273371. The reversal of 11391273353 is 35337219311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8949727609 + 2441545744 = 94603^2 + 49412^2 .

It is a cyclic number.

It is not a de Polignac number, because 11391273353 - 2⁴ = 11391273337 is a prime.

It is a super-2 number, since 2×11391273353² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11391273343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695636676 + 5695636677.

It is an arithmetic number, because the mean of its divisors is an integer number (5695636677).

Almost surely, 2^11391273353 is an apocalyptic number.

It is an amenable number.

11391273353 is a deficient number, since it is larger than the sum of its proper divisors (1).

11391273353 is an equidigital number, since it uses as much as digits as its factorization.

11391273353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 38.

The spelling of 11391273353 in words is "eleven billion, three hundred ninety-one million, two hundred seventy-three thousand, three hundred fifty-three".