30231443021 has 8 divisors (see below), whose sum is σ = 32671984800. Its totient is φ = 27807336432.

The previous prime is 30231442981. The next prime is 30231443051. The reversal of 30231443021 is 12034413203.

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 30231443021 - 2⁶ = 30231442957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231443051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4104971 + ... + 4112328.

It is an arithmetic number, because the mean of its divisors is an integer number (4083998100).

Almost surely, 2^30231443021 is an apocalyptic number.

It is an amenable number.

30231443021 is a deficient number, since it is larger than the sum of its proper divisors (2440541779).

30231443021 is a wasteful number, since it uses less digits than its factorization.

30231443021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217595.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30231443021 its reverse (12034413203), we get a palindrome (42265856224).

The spelling of 30231443021 in words is "thirty billion, two hundred thirty-one million, four hundred forty-three thousand, twenty-one".