20133030421 has 8 divisors (see below), whose sum is σ = 23058877184. Its totient is φ = 17219608560.

The previous prime is 20133030371. The next prime is 20133030433. The reversal of 20133030421 is 12403033102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20133030421 - 2¹⁵ = 20132997653 is a prime.

It is a super-2 number, since 2×20133030421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133030461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3102750 + ... + 3109231.

It is an arithmetic number, because the mean of its divisors is an integer number (2882359648).

Almost surely, 2^20133030421 is an apocalyptic number.

It is an amenable number.

20133030421 is a deficient number, since it is larger than the sum of its proper divisors (2925846763).

20133030421 is an equidigital number, since it uses as much as digits as its factorization.

20133030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212451.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20133030421 its reverse (12403033102), we get a palindrome (32536063523).

The spelling of 20133030421 in words is "twenty billion, one hundred thirty-three million, thirty thousand, four hundred twenty-one".