20033123203 has 4 divisors (see below), whose sum is σ = 20045575480. Its totient is φ = 20020670928.

The previous prime is 20033123197. The next prime is 20033123251. The reversal of 20033123203 is 30232133002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20033123203 - 2³³ = 11443188611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20033123263) 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, 6223725 + ... + 6226942.

It is an arithmetic number, because the mean of its divisors is an integer number (5011393870).

Almost surely, 2^20033123203 is an apocalyptic number.

20033123203 is a deficient number, since it is larger than the sum of its proper divisors (12452277).

20033123203 is a wasteful number, since it uses less digits than its factorization.

20033123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12452276.

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

Adding to 20033123203 its reverse (30232133002), we get a palindrome (50265256205).

The spelling of 20033123203 in words is "twenty billion, thirty-three million, one hundred twenty-three thousand, two hundred three".