30180231 has 6 divisors (see below), whose sum is σ = 43593680. Its totient is φ = 20120148.

The previous prime is 30180229. The next prime is 30180259. The reversal of 30180231 is 13208103.

It is not a de Polignac number, because 30180231 - 2¹ = 30180229 is a prime.

It is a super-2 number, since 2×30180231² = 1821692686426722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30180221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1676671 + ... + 1676688.

Almost surely, 2^30180231 is an apocalyptic number.

30180231 is a deficient number, since it is larger than the sum of its proper divisors (13413449).

30180231 is a wasteful number, since it uses less digits than its factorization.

30180231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353365 (or 3353362 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30180231 is about 5493.6537022277. The cubic root of 30180231 is about 311.3442526768.

Adding to 30180231 its reverse (13208103), we get a palindrome (43388334).

The spelling of 30180231 in words is "thirty million, one hundred eighty thousand, two hundred thirty-one".