20023311011223 has 32 divisors (see below), whose sum is σ = 29743300036800. Its totient is φ = 11896959384576.

The previous prime is 20023311011219. The next prime is 20023311011233. The reversal of 20023311011223 is 32211011332002.

It is not a de Polignac number, because 20023311011223 - 2² = 20023311011219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20023311011223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023311011233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132216261 + ... + 132367617.

It is an arithmetic number, because the mean of its divisors is an integer number (929478126150).

Almost surely, 2^{20023311011223} is an apocalyptic number.

20023311011223 is a deficient number, since it is larger than the sum of its proper divisors (9719989025577).

20023311011223 is a wasteful number, since it uses less digits than its factorization.

20023311011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268371.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20023311011223 its reverse (32211011332002), we get a palindrome (52234322343225).

The spelling of 20023311011223 in words is "twenty trillion, twenty-three billion, three hundred eleven million, eleven thousand, two hundred twenty-three".