30433310021 has 16 divisors (see below), whose sum is σ = 32190681600. Its totient is φ = 28691810928.

The previous prime is 30433310003. The next prime is 30433310057. The reversal of 30433310021 is 12001333403.

It is not a de Polignac number, because 30433310021 - 2¹⁴ = 30433293637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30433309975 and 30433310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30433310221) 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, 3980120 + ... + 3987758.

It is an arithmetic number, because the mean of its divisors is an integer number (2011917600).

Almost surely, 2^30433310021 is an apocalyptic number.

It is an amenable number.

30433310021 is a deficient number, since it is larger than the sum of its proper divisors (1757371579).

30433310021 is a wasteful number, since it uses less digits than its factorization.

30433310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30433310021 its reverse (12001333403), we get a palindrome (42434643424).

The spelling of 30433310021 in words is "thirty billion, four hundred thirty-three million, three hundred ten thousand, twenty-one".