11391273371 has 2 divisors, whose sum is σ = 11391273372. Its totient is φ = 11391273370.

The previous prime is 11391273353. The next prime is 11391273389. The reversal of 11391273371 is 17337219311.

It is a balanced prime because it is at equal distance from previous prime (11391273353) and next prime (11391273389).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11391273371 is a prime.

It is a super-2 number, since 2×11391273371² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11391273301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695636685 + 5695636686.

It is an arithmetic number, because the mean of its divisors is an integer number (5695636686).

Almost surely, 2^11391273371 is an apocalyptic number.

11391273371 is a deficient number, since it is larger than the sum of its proper divisors (1).

11391273371 is an equidigital number, since it uses as much as digits as its factorization.

11391273371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 38.

The spelling of 11391273371 in words is "eleven billion, three hundred ninety-one million, two hundred seventy-three thousand, three hundred seventy-one".