30201123 has 4 divisors (see below), whose sum is σ = 40268168. Its totient is φ = 20134080.

The previous prime is 30201091. The next prime is 30201137. The reversal of 30201123 is 32110203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30201123 - 2⁵ = 30201091 is a prime.

It is a super-2 number, since 2×30201123² = 1824215660922258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201099 and 30201108.

It is not an unprimeable number, because it can be changed into a prime (30201173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033518 + ... + 5033523.

It is an arithmetic number, because the mean of its divisors is an integer number (10067042).

Almost surely, 2^30201123 is an apocalyptic number.

30201123 is a deficient number, since it is larger than the sum of its proper divisors (10067045).

30201123 is a wasteful number, since it uses less digits than its factorization.

30201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067044.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30201123 is about 5495.5548400503. The cubic root of 30201123 is about 311.4160778813.

Adding to 30201123 its reverse (32110203), we get a palindrome (62311326).

The spelling of 30201123 in words is "thirty million, two hundred one thousand, one hundred twenty-three".