20123303223 has 12 divisors (see below), whose sum is σ = 28502211560. Its totient is φ = 12626385792.

The previous prime is 20123303197. The next prime is 20123303227. The reversal of 20123303223 is 32230332102.

It is not a de Polignac number, because 20123303223 - 2⁹ = 20123302711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20123303223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123303227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11604268 + ... + 11606001.

Almost surely, 2^20123303223 is an apocalyptic number.

20123303223 is a deficient number, since it is larger than the sum of its proper divisors (8378908337).

20123303223 is a wasteful number, since it uses less digits than its factorization.

20123303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23210306 (or 23210289 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20123303223 its reverse (32230332102), we get a palindrome (52353635325).

The spelling of 20123303223 in words is "twenty billion, one hundred twenty-three million, three hundred three thousand, two hundred twenty-three".