109391990399 has 2 divisors, whose sum is σ = 109391990400. Its totient is φ = 109391990398.

The previous prime is 109391990369. The next prime is 109391990417. The reversal of 109391990399 is 993099193901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109391990399 - 2²⁰ = 109390941823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109391990359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54695995199 + 54695995200.

It is an arithmetic number, because the mean of its divisors is an integer number (54695995200).

Almost surely, 2^109391990399 is an apocalyptic number.

109391990399 is a deficient number, since it is larger than the sum of its proper divisors (1).

109391990399 is an equidigital number, since it uses as much as digits as its factorization.

109391990399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4782969, while the sum is 62.

The spelling of 109391990399 in words is "one hundred nine billion, three hundred ninety-one million, nine hundred ninety thousand, three hundred ninety-nine".