101109399 has 16 divisors (see below), whose sum is σ = 140574720. Its totient is φ = 64562400.

The previous prime is 101109373. The next prime is 101109401. The reversal of 101109399 is 993901101.

It is not a de Polignac number, because 101109399 - 2⁸ = 101109143 is a prime.

It is a super-2 number, since 2×101109399² = 20446221132282402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101109199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6474 + ... + 15624.

It is an arithmetic number, because the mean of its divisors is an integer number (8785920).

Almost surely, 2^101109399 is an apocalyptic number.

101109399 is a deficient number, since it is larger than the sum of its proper divisors (39465321).

101109399 is a wasteful number, since it uses less digits than its factorization.

101109399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 101109399 is about 10055.3169517425. The cubic root of 101109399 is about 465.8690327432.

The spelling of 101109399 in words is "one hundred one million, one hundred nine thousand, three hundred ninety-nine".