11308881697 has 2 divisors, whose sum is σ = 11308881698. Its totient is φ = 11308881696.

The previous prime is 11308881677. The next prime is 11308881739. The reversal of 11308881697 is 79618880311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7324621056 + 3984260641 = 85584^2 + 63121^2 .

It is a cyclic number.

It is not a de Polignac number, because 11308881697 - 2¹¹ = 11308879649 is a prime.

It is not a weakly prime, because it can be changed into another prime (11308881677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5654440848 + 5654440849.

It is an arithmetic number, because the mean of its divisors is an integer number (5654440849).

Almost surely, 2^11308881697 is an apocalyptic number.

It is an amenable number.

11308881697 is a deficient number, since it is larger than the sum of its proper divisors (1).

11308881697 is an equidigital number, since it uses as much as digits as its factorization.

11308881697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 52.

The spelling of 11308881697 in words is "eleven billion, three hundred eight million, eight hundred eighty-one thousand, six hundred ninety-seven".