120143399 has 4 divisors (see below), whose sum is σ = 121007880. Its totient is φ = 119278920.

The previous prime is 120143389. The next prime is 120143417. The reversal of 120143399 is 993341021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120143399 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 (120143389) 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, 432032 + ... + 432309.

It is an arithmetic number, because the mean of its divisors is an integer number (30251970).

Almost surely, 2^120143399 is an apocalyptic number.

120143399 is a deficient number, since it is larger than the sum of its proper divisors (864481).

120143399 is an equidigital number, since it uses as much as digits as its factorization.

120143399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864480.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 120143399 is about 10960.9944348129. The cubic root of 120143399 is about 493.4388101817.

The spelling of 120143399 in words is "one hundred twenty million, one hundred forty-three thousand, three hundred ninety-nine".