30033013021 has 32 divisors (see below), whose sum is σ = 33598281600. Its totient is φ = 26615930880.

The previous prime is 30033013013. The next prime is 30033013037. The reversal of 30033013021 is 12031033003.

It is not a de Polignac number, because 30033013021 - 2³ = 30033013013 is a prime.

It is a super-2 number, since 2×30033013021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30033012986 and 30033013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30033013091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77205495 + ... + 77205883.

It is an arithmetic number, because the mean of its divisors is an integer number (1049946300).

Almost surely, 2^30033013021 is an apocalyptic number.

It is an amenable number.

30033013021 is a deficient number, since it is larger than the sum of its proper divisors (3565268579).

30033013021 is a wasteful number, since it uses less digits than its factorization.

30033013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 30033013021 its reverse (12031033003), we get a palindrome (42064046024).

The spelling of 30033013021 in words is "thirty billion, thirty-three million, thirteen thousand, twenty-one".