20003222123 has 4 divisors (see below), whose sum is σ = 20029508328. Its totient is φ = 19976935920.

The previous prime is 20003222089. The next prime is 20003222131. The reversal of 20003222123 is 32122230002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32122230002 = 2 ⋅16061115001.

It is a cyclic number.

It is not a de Polignac number, because 20003222123 - 2¹⁰ = 20003221099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003222143) 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, 13141961 + ... + 13143482.

It is an arithmetic number, because the mean of its divisors is an integer number (5007377082).

Almost surely, 2^20003222123 is an apocalyptic number.

20003222123 is a deficient number, since it is larger than the sum of its proper divisors (26286205).

20003222123 is an equidigital number, since it uses as much as digits as its factorization.

20003222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26286204.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20003222123 its reverse (32122230002), we get a palindrome (52125452125).

The spelling of 20003222123 in words is "twenty billion, three million, two hundred twenty-two thousand, one hundred twenty-three".