30121304 has 16 divisors (see below), whose sum is σ = 56553120. Its totient is φ = 15040480.

The previous prime is 30121303. The next prime is 30121307. The reversal of 30121304 is 40312103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121303) 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, 5222 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (3534570).

Almost surely, 2^30121304 is an apocalyptic number.

It is an amenable number.

30121304 is a deficient number, since it is larger than the sum of its proper divisors (26431816).

30121304 is a wasteful number, since it uses less digits than its factorization.

30121304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050 (or 5046 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30121304 is about 5488.2878933234. The cubic root of 30121304 is about 311.1414870945.

Adding to 30121304 its reverse (40312103), we get a palindrome (70433407).

The spelling of 30121304 in words is "thirty million, one hundred twenty-one thousand, three hundred four".