20001123233 has 16 divisors (see below), whose sum is σ = 24620230656. Its totient is φ = 15822838080.

The previous prime is 20001123229. The next prime is 20001123253. The reversal of 20001123233 is 33232110002.

It is not a de Polignac number, because 20001123233 - 2² = 20001123229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001123253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 997535 + ... + 1017387.

It is an arithmetic number, because the mean of its divisors is an integer number (1538764416).

Almost surely, 2^20001123233 is an apocalyptic number.

It is an amenable number.

20001123233 is a deficient number, since it is larger than the sum of its proper divisors (4619107423).

20001123233 is a wasteful number, since it uses less digits than its factorization.

20001123233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30944.

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

Adding to 20001123233 its reverse (33232110002), we get a palindrome (53233233235).

The spelling of 20001123233 in words is "twenty billion, one million, one hundred twenty-three thousand, two hundred thirty-three".