30001032021 has 16 divisors (see below), whose sum is σ = 40908821760. Its totient is φ = 19551979200.

The previous prime is 30001032007. The next prime is 30001032079. The reversal of 30001032021 is 12023010003.

It is a happy number.

It is not a de Polignac number, because 30001032021 - 2²⁶ = 29933923157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30001031988 and 30001032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001030021) 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, 602730 + ... + 650603.

It is an arithmetic number, because the mean of its divisors is an integer number (2556801360).

Almost surely, 2^30001032021 is an apocalyptic number.

It is an amenable number.

30001032021 is a deficient number, since it is larger than the sum of its proper divisors (10907789739).

30001032021 is a wasteful number, since it uses less digits than its factorization.

30001032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253516.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30001032021 its reverse (12023010003), we get a palindrome (42024042024).

The spelling of 30001032021 in words is "thirty billion, one million, thirty-two thousand, twenty-one".