30021011 has 2 divisors, whose sum is σ = 30021012. Its totient is φ = 30021010.

The previous prime is 30020999. The next prime is 30021037. The reversal of 30021011 is 11012003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30021011 - 2¹⁸ = 29758867 is a prime.

It is a super-2 number, since 2×30021011² = 1802522202924242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30021011.

It is not a weakly prime, because it can be changed into another prime (30021041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010505 + 15010506.

It is an arithmetic number, because the mean of its divisors is an integer number (15010506).

Almost surely, 2^30021011 is an apocalyptic number.

30021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

30021011 is an equidigital number, since it uses as much as digits as its factorization.

30021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 30021011 is about 5479.1432724469. The cubic root of 30021011 is about 310.7957737362.

Adding to 30021011 its reverse (11012003), we get a palindrome (41033014).

The spelling of 30021011 in words is "thirty million, twenty-one thousand, eleven".