20001030111233 has 4 divisors (see below), whose sum is σ = 20488860113988. Its totient is φ = 19513200108480.

The previous prime is 20001030111197. The next prime is 20001030111287. The reversal of 20001030111233 is 33211103010002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6498175919104 + 13502854192129 = 2549152^2 + 3674623^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001030111233 - 2¹² = 20001030107137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20006030111233) 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, 243915001316 + ... + 243915001397.

It is an arithmetic number, because the mean of its divisors is an integer number (5122215028497).

Almost surely, 2^{20001030111233} is an apocalyptic number.

It is an amenable number.

20001030111233 is a deficient number, since it is larger than the sum of its proper divisors (487830002755).

20001030111233 is an equidigital number, since it uses as much as digits as its factorization.

20001030111233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487830002754.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20001030111233 its reverse (33211103010002), we get a palindrome (53212133121235).

The spelling of 20001030111233 in words is "twenty trillion, one billion, thirty million, one hundred eleven thousand, two hundred thirty-three".