30032030021 has 64 divisors (see below), whose sum is σ = 37610926080. Its totient is φ = 23413847040.

The previous prime is 30032030011. The next prime is 30032030023. The reversal of 30032030021 is 12003023003.

It is a cyclic number.

It is not a de Polignac number, because 30032030021 - 2³⁰ = 28958288197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30032029978 and 30032030005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032030023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69357821 + ... + 69358253.

It is an arithmetic number, because the mean of its divisors is an integer number (587670720).

Almost surely, 2^30032030021 is an apocalyptic number.

It is an amenable number.

30032030021 is a deficient number, since it is larger than the sum of its proper divisors (7578896059).

30032030021 is a wasteful number, since it uses less digits than its factorization.

30032030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

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

Adding to 30032030021 its reverse (12003023003), we get a palindrome (42035053024).

The spelling of 30032030021 in words is "thirty billion, thirty-two million, thirty thousand, twenty-one".