20003122133 has 4 divisors (see below), whose sum is σ = 20007438720. Its totient is φ = 19998805548.

The previous prime is 20003122129. The next prime is 20003122163. The reversal of 20003122133 is 33122130002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20003122133 - 2² = 20003122129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003122163) 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, 2151335 + ... + 2160612.

It is an arithmetic number, because the mean of its divisors is an integer number (5001859680).

Almost surely, 2^20003122133 is an apocalyptic number.

It is an amenable number.

20003122133 is a deficient number, since it is larger than the sum of its proper divisors (4316587).

20003122133 is an equidigital number, since it uses as much as digits as its factorization.

20003122133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316586.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20003122133 its reverse (33122130002), we get a palindrome (53125252135).

The spelling of 20003122133 in words is "twenty billion, three million, one hundred twenty-two thousand, one hundred thirty-three".