103201999 has 4 divisors (see below), whose sum is σ = 103691320. Its totient is φ = 102712680.

The previous prime is 103201993. The next prime is 103202009. The reversal of 103201999 is 999102301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103201999 - 2⁷ = 103201871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103201993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244344 + ... + 244765.

It is an arithmetic number, because the mean of its divisors is an integer number (25922830).

Almost surely, 2^103201999 is an apocalyptic number.

103201999 is a deficient number, since it is larger than the sum of its proper divisors (489321).

103201999 is an equidigital number, since it uses as much as digits as its factorization.

103201999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489320.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 103201999 is about 10158.8384670690. The cubic root of 103201999 is about 469.0610483313.

The spelling of 103201999 in words is "one hundred three million, two hundred one thousand, nine hundred ninety-nine".