101399 has 2 divisors, whose sum is σ = 101400. Its totient is φ = 101398.

The previous prime is 101383. The next prime is 101411. The reversal of 101399 is 993101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101399 - 2⁴ = 101383 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 101399.

It is not a weakly prime, because it can be changed into another prime (101359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50699 + 50700.

It is an arithmetic number, because the mean of its divisors is an integer number (50700).

2¹⁰¹³⁹⁹ is an apocalyptic number.

101399 is a deficient number, since it is larger than the sum of its proper divisors (1).

101399 is an equidigital number, since it uses as much as digits as its factorization.

101399 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 23.

The square root of 101399 is about 318.4320963722. The cubic root of 101399 is about 46.6313394768.

The spelling of 101399 in words is "one hundred one thousand, three hundred ninety-nine".