20011010233 has 32 divisors (see below), whose sum is σ = 22037875200. Its totient is φ = 18094841856.

The previous prime is 20011010219. The next prime is 20011010249. The reversal of 20011010233 is 33201011002.

It is a cyclic number.

It is not a de Polignac number, because 20011010233 - 2²¹ = 20008913081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011010293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21539913 + ... + 21540841.

It is an arithmetic number, because the mean of its divisors is an integer number (688683600).

Almost surely, 2^20011010233 is an apocalyptic number.

It is an amenable number.

20011010233 is a deficient number, since it is larger than the sum of its proper divisors (2026864967).

20011010233 is a wasteful number, since it uses less digits than its factorization.

20011010233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20011010233 its reverse (33201011002), we get a palindrome (53212021235).

The spelling of 20011010233 in words is "twenty billion, eleven million, ten thousand, two hundred thirty-three".