20530403333 has 8 divisors (see below), whose sum is σ = 22405889856. Its totient is φ = 18656431200.

The previous prime is 20530403303. The next prime is 20530403423. The reversal of 20530403333 is 33330403502.

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

It is not a de Polignac number, because 20530403333 - 2¹⁴ = 20530386949 is a prime.

It is a super-2 number, since 2×20530403333² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530403303) 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, 350153 + ... + 404558.

It is an arithmetic number, because the mean of its divisors is an integer number (2800736232).

Almost surely, 2^20530403333 is an apocalyptic number.

It is an amenable number.

20530403333 is a deficient number, since it is larger than the sum of its proper divisors (1875486523).

20530403333 is a wasteful number, since it uses less digits than its factorization.

20530403333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757195.

The product of its (nonzero) digits is 9720, while the sum is 26.

Adding to 20530403333 its reverse (33330403502), we get a palindrome (53860806835).

The spelling of 20530403333 in words is "twenty billion, five hundred thirty million, four hundred three thousand, three hundred thirty-three".