30311199 has 16 divisors (see below), whose sum is σ = 45007200. Its totient is φ = 20161728.

The previous prime is 30311159. The next prime is 30311201. The reversal of 30311199 is 99111303.

It is not a de Polignac number, because 30311199 - 2¹¹ = 30309151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311129) 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, 14377 + ... + 16349.

It is an arithmetic number, because the mean of its divisors is an integer number (2812950).

Almost surely, 2^30311199 is an apocalyptic number.

30311199 is a deficient number, since it is larger than the sum of its proper divisors (14696001).

30311199 is a wasteful number, since it uses less digits than its factorization.

30311199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 30311199 is about 5505.5607343848. The cubic root of 30311199 is about 311.7939653027.

The spelling of 30311199 in words is "thirty million, three hundred eleven thousand, one hundred ninety-nine".