11697390431 has 2 divisors, whose sum is σ = 11697390432. Its totient is φ = 11697390430.

The previous prime is 11697390421. The next prime is 11697390437. The reversal of 11697390431 is 13409379611.

11697390431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13409379611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11697390431 is a prime.

It is a super-2 number, since 2×11697390431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11697390437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5848695215 + 5848695216.

It is an arithmetic number, because the mean of its divisors is an integer number (5848695216).

Almost surely, 2^11697390431 is an apocalyptic number.

11697390431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11697390431 is an equidigital number, since it uses as much as digits as its factorization.

11697390431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 11697390431 in words is "eleven billion, six hundred ninety-seven million, three hundred ninety thousand, four hundred thirty-one".