33130230021 has 12 divisors (see below), whose sum is σ = 54691173472. Its totient is φ = 18931559976.

The previous prime is 33130230019. The next prime is 33130230041. The reversal of 33130230021 is 12003203133.

33130230021 is a `hidden beast` number, since 331 + 30 + 2 + 300 + 2 + 1 = 666.

It is not a de Polignac number, because 33130230021 - 2¹ = 33130230019 is a prime.

It is a super-2 number, since 2×33130230021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33130229976 and 33130230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130230041) 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 11 ways as a sum of consecutive naturals, for example, 262938271 + ... + 262938396.

Almost surely, 2^33130230021 is an apocalyptic number.

It is an amenable number.

33130230021 is a deficient number, since it is larger than the sum of its proper divisors (21560943451).

33130230021 is a wasteful number, since it uses less digits than its factorization.

33130230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525876680 (or 525876677 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 33130230021 its reverse (12003203133), we get a palindrome (45133433154).

The spelling of 33130230021 in words is "thirty-three billion, one hundred thirty million, two hundred thirty thousand, twenty-one".