20111230223303 has 2 divisors, whose sum is σ = 20111230223304. Its totient is φ = 20111230223302.

The previous prime is 20111230223251. The next prime is 20111230223347. The reversal of 20111230223303 is 30332203211102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20111230223303 - 2¹² = 20111230219207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111230223603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055615111651 + 10055615111652.

It is an arithmetic number, because the mean of its divisors is an integer number (10055615111652).

Almost surely, 2^{20111230223303} is an apocalyptic number.

20111230223303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111230223303 is an equidigital number, since it uses as much as digits as its factorization.

20111230223303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20111230223303 its reverse (30332203211102), we get a palindrome (50443433434405).

The spelling of 20111230223303 in words is "twenty trillion, one hundred eleven billion, two hundred thirty million, two hundred twenty-three thousand, three hundred three".