20133320203 has 4 divisors (see below), whose sum is σ = 20133672160. Its totient is φ = 20132968248.

The previous prime is 20133320159. The next prime is 20133320219. The reversal of 20133320203 is 30202333102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202333102 = 2 ⋅15101166551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133320203 is a prime.

It is a super-2 number, since 2×20133320203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20133320003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68148 + ... + 211921.

It is an arithmetic number, because the mean of its divisors is an integer number (5033418040).

Almost surely, 2^20133320203 is an apocalyptic number.

20133320203 is a deficient number, since it is larger than the sum of its proper divisors (351957).

20133320203 is an equidigital number, since it uses as much as digits as its factorization.

20133320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351956.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20133320203 its reverse (30202333102), we get a palindrome (50335653305).

The spelling of 20133320203 in words is "twenty billion, one hundred thirty-three million, three hundred twenty thousand, two hundred three".