10111001399 has 2 divisors, whose sum is σ = 10111001400. Its totient is φ = 10111001398.

The previous prime is 10111001377. The next prime is 10111001443. The reversal of 10111001399 is 99310011101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10111001399 - 2⁸ = 10111001143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111001309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055500699 + 5055500700.

It is an arithmetic number, because the mean of its divisors is an integer number (5055500700).

Almost surely, 2^10111001399 is an apocalyptic number.

10111001399 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111001399 is an equidigital number, since it uses as much as digits as its factorization.

10111001399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 26.

The spelling of 10111001399 in words is "ten billion, one hundred eleven million, one thousand, three hundred ninety-nine".