30121104 has 40 divisors (see below), whose sum is σ = 83800192. Its totient is φ = 9267840.

The previous prime is 30121097. The next prime is 30121151. The reversal of 30121104 is 40112103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30121104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23512 + ... + 24759.

Almost surely, 2^30121104 is an apocalyptic number.

It is an amenable number.

30121104 is an abundant number, since it is smaller than the sum of its proper divisors (53679088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30121104 is a wasteful number, since it uses less digits than its factorization.

30121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48295 (or 48289 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 30121104 is about 5488.2696726746. The cubic root of 30121104 is about 311.1407984520.

Adding to 30121104 its reverse (40112103), we get a palindrome (70233207).

Subtracting 30121104 from its reverse (40112103), we obtain a palindrome (9990999).

The spelling of 30121104 in words is "thirty million, one hundred twenty-one thousand, one hundred four".