11331112997 has 2 divisors, whose sum is σ = 11331112998. Its totient is φ = 11331112996.

The previous prime is 11331112981. The next prime is 11331113021. The reversal of 11331112997 is 79921113311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7957710436 + 3373402561 = 89206^2 + 58081^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331112997 - 2⁴ = 11331112981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11331112997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331112907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665556498 + 5665556499.

It is an arithmetic number, because the mean of its divisors is an integer number (5665556499).

Almost surely, 2^11331112997 is an apocalyptic number.

It is an amenable number.

11331112997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331112997 is an equidigital number, since it uses as much as digits as its factorization.

11331112997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 38.

The spelling of 11331112997 in words is "eleven billion, three hundred thirty-one million, one hundred twelve thousand, nine hundred ninety-seven".