30120201 has 16 divisors (see below), whose sum is σ = 44928000. Its totient is φ = 19942704.

The previous prime is 30120197. The next prime is 30120203. The reversal of 30120201 is 10202103.

It is a happy number.

It is not a de Polignac number, because 30120201 - 2² = 30120197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (30120203) 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, 280 + ... + 7766.

It is an arithmetic number, because the mean of its divisors is an integer number (2808000).

Almost surely, 2^30120201 is an apocalyptic number.

It is an amenable number.

30120201 is a deficient number, since it is larger than the sum of its proper divisors (14807799).

30120201 is a wasteful number, since it uses less digits than its factorization.

30120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7645 (or 7639 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30120201 is about 5488.1874056923. The cubic root of 30120201 is about 311.1376891929.

Adding to 30120201 its reverse (10202103), we get a palindrome (40322304).

It can be divided in two parts, 301 and 20201, that added together give a palindrome (20502).

The spelling of 30120201 in words is "thirty million, one hundred twenty thousand, two hundred one".