30180321 has 12 divisors (see below), whose sum is σ = 46158372. Its totient is φ = 18936576.

The previous prime is 30180307. The next prime is 30180323. The reversal of 30180321 is 12308103.

It can be written as a sum of positive squares in 2 ways, for example, as 28037025 + 2143296 = 5295^2 + 1464^2 .

It is not a de Polignac number, because 30180321 - 2⁷ = 30180193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30180294 and 30180303.

It is not an unprimeable number, because it can be changed into a prime (30180323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98476 + ... + 98781.

It is an arithmetic number, because the mean of its divisors is an integer number (3846531).

Almost surely, 2^30180321 is an apocalyptic number.

It is an amenable number.

30180321 is a deficient number, since it is larger than the sum of its proper divisors (15978051).

30180321 is a wasteful number, since it uses less digits than its factorization.

30180321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197280 (or 197277 counting only the distinct ones).

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

The square root of 30180321 is about 5493.6618934914. The cubic root of 30180321 is about 311.3445621615.

Adding to 30180321 its reverse (12308103), we get a palindrome (42488424).

The spelling of 30180321 in words is "thirty million, one hundred eighty thousand, three hundred twenty-one".