30020033021 has 16 divisors (see below), whose sum is σ = 34752222720. Its totient is φ = 25661916720.

The previous prime is 30020033011. The next prime is 30020033033. The reversal of 30020033021 is 12033002003.

It is not a de Polignac number, because 30020033021 - 2³⁴ = 12840163837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30020032987 and 30020033005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020033011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990635 + ... + 1020488.

It is an arithmetic number, because the mean of its divisors is an integer number (2172013920).

Almost surely, 2^30020033021 is an apocalyptic number.

It is an amenable number.

30020033021 is a deficient number, since it is larger than the sum of its proper divisors (4732189699).

30020033021 is a wasteful number, since it uses less digits than its factorization.

30020033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011216.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 30020033021 its reverse (12033002003), we get a palindrome (42053035024).

The spelling of 30020033021 in words is "thirty billion, twenty million, thirty-three thousand, twenty-one".