30204131 has 4 divisors (see below), whose sum is σ = 30396672. Its totient is φ = 30011592.

The previous prime is 30204107. The next prime is 30204133. The reversal of 30204131 is 13140203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13140203 = 827 ⋅15889.

It is a cyclic number.

It is not a de Polignac number, because 30204131 - 2¹⁴ = 30187747 is a prime.

It is a super-2 number, since 2×30204131² = 1824579058930322, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (30204133) 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, 96035 + ... + 96348.

It is an arithmetic number, because the mean of its divisors is an integer number (7599168).

Almost surely, 2^30204131 is an apocalyptic number.

30204131 is a deficient number, since it is larger than the sum of its proper divisors (192541).

30204131 is a wasteful number, since it uses less digits than its factorization.

30204131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192540.

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

The square root of 30204131 is about 5495.8285089693. The cubic root of 30204131 is about 311.4264164423.

Adding to 30204131 its reverse (13140203), we get a palindrome (43344334).

The spelling of 30204131 in words is "thirty million, two hundred four thousand, one hundred thirty-one".