30033232021 has 8 divisors (see below), whose sum is σ = 32346047160. Its totient is φ = 27720783552.

The previous prime is 30033232007. The next prime is 30033232057. The reversal of 30033232021 is 12023233003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 133980625 + 29899251396 = 11575^2 + 172914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30033232021 - 2¹¹ = 30033229973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30033232021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30033232091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92115 + ... + 261823.

It is an arithmetic number, because the mean of its divisors is an integer number (4043255895).

Almost surely, 2^30033232021 is an apocalyptic number.

It is an amenable number.

30033232021 is a deficient number, since it is larger than the sum of its proper divisors (2312815139).

30033232021 is a wasteful number, since it uses less digits than its factorization.

30033232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183335.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30033232021 its reverse (12023233003), we get a palindrome (42056465024).

The spelling of 30033232021 in words is "thirty billion, thirty-three million, two hundred thirty-two thousand, twenty-one".