30233201021 has 4 divisors (see below), whose sum is σ = 30234439200. Its totient is φ = 30231962844.

The previous prime is 30233201003. The next prime is 30233201039. The reversal of 30233201021 is 12010233203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12010233203 = 19 ⋅632117537.

It is an interprime number because it is at equal distance from previous prime (30233201003) and next prime (30233201039).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30233201021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30233201051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581711 + ... + 631548.

It is an arithmetic number, because the mean of its divisors is an integer number (7558609800).

Almost surely, 2^30233201021 is an apocalyptic number.

It is an amenable number.

30233201021 is a deficient number, since it is larger than the sum of its proper divisors (1238179).

30233201021 is a wasteful number, since it uses less digits than its factorization.

30233201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238178.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30233201021 its reverse (12010233203), we get a palindrome (42243434224).

The spelling of 30233201021 in words is "thirty billion, two hundred thirty-three million, two hundred one thousand, twenty-one".