30020331 has 16 divisors (see below), whose sum is σ = 44103168. Its totient is φ = 18012000.

The previous prime is 30020329. The next prime is 30020377. The reversal of 30020331 is 13302003.

It is a happy number.

It is not a de Polignac number, because 30020331 - 2¹ = 30020329 is a prime.

It is a super-2 number, since 2×30020331² = 1802440546699122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30020381) 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 15 ways as a sum of consecutive naturals, for example, 1171 + ... + 7836.

It is an arithmetic number, because the mean of its divisors is an integer number (2756448).

Almost surely, 2^30020331 is an apocalyptic number.

30020331 is a deficient number, since it is larger than the sum of its proper divisors (14082837).

30020331 is a wasteful number, since it uses less digits than its factorization.

30020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30020331 is about 5479.0812185986. The cubic root of 30020331 is about 310.7934271272.

Adding to 30020331 its reverse (13302003), we get a palindrome (43322334).

The spelling of 30020331 in words is "thirty million, twenty thousand, three hundred thirty-one".