30121099 has 8 divisors (see below), whose sum is σ = 33085440. Its totient is φ = 27294696.

The previous prime is 30121097. The next prime is 30121151. The reversal of 30121099 is 99012103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30121099 - 2¹ = 30121097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34027 + ... + 34900.

It is an arithmetic number, because the mean of its divisors is an integer number (4135680).

Almost surely, 2^30121099 is an apocalyptic number.

30121099 is a deficient number, since it is larger than the sum of its proper divisors (2964341).

30121099 is a wasteful number, since it uses less digits than its factorization.

30121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68969.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 30121099 is about 5488.2692171576. The cubic root of 30121099 is about 311.1407812359.

The spelling of 30121099 in words is "thirty million, one hundred twenty-one thousand, ninety-nine".