20101230233 has 4 divisors (see below), whose sum is σ = 22972834560. Its totient is φ = 17229625908.

The previous prime is 20101230221. The next prime is 20101230277. The reversal of 20101230233 is 33203210102.

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 20101230233 - 2⁴ = 20101230217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101230733) 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, 1435802153 + ... + 1435802166.

It is an arithmetic number, because the mean of its divisors is an integer number (5743208640).

Almost surely, 2^20101230233 is an apocalyptic number.

It is an amenable number.

20101230233 is a deficient number, since it is larger than the sum of its proper divisors (2871604327).

20101230233 is an equidigital number, since it uses as much as digits as its factorization.

20101230233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871604326.

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

Adding to 20101230233 its reverse (33203210102), we get a palindrome (53304440335).

The spelling of 20101230233 in words is "twenty billion, one hundred one million, two hundred thirty thousand, two hundred thirty-three".