20001120233 has 8 divisors (see below), whose sum is σ = 20480354400. Its totient is φ = 19522526688.

The previous prime is 20001120197. The next prime is 20001120253. The reversal of 20001120233 is 33202110002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20001120233 - 2⁸ = 20001119977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001120253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96668 + ... + 222141.

It is an arithmetic number, because the mean of its divisors is an integer number (2560044300).

Almost surely, 2^20001120233 is an apocalyptic number.

It is an amenable number.

20001120233 is a deficient number, since it is larger than the sum of its proper divisors (479234167).

20001120233 is a wasteful number, since it uses less digits than its factorization.

20001120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320311.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20001120233 its reverse (33202110002), we get a palindrome (53203230235).

The spelling of 20001120233 in words is "twenty billion, one million, one hundred twenty thousand, two hundred thirty-three".