111388867399 has 2 divisors, whose sum is σ = 111388867400. Its totient is φ = 111388867398.

The previous prime is 111388867393. The next prime is 111388867417. The reversal of 111388867399 is 993768883111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111388867399 - 2³ = 111388867391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111388867399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111388867391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55694433699 + 55694433700.

It is an arithmetic number, because the mean of its divisors is an integer number (55694433700).

Almost surely, 2^111388867399 is an apocalyptic number.

111388867399 is a deficient number, since it is larger than the sum of its proper divisors (1).

111388867399 is an equidigital number, since it uses as much as digits as its factorization.

111388867399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 64.

The spelling of 111388867399 in words is "one hundred eleven billion, three hundred eighty-eight million, eight hundred sixty-seven thousand, three hundred ninety-nine".