123212220303223 has 4 divisors (see below), whose sum is σ = 123212268732168. Its totient is φ = 123212171874280.

The previous prime is 123212220303197. The next prime is 123212220303229. The reversal of 123212220303223 is 322303022212321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123212220303223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123212220303191 and 123212220303200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212220303229) 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, 20173393 + ... + 25561498.

It is an arithmetic number, because the mean of its divisors is an integer number (30803067183042).

Almost surely, 2^{123212220303223} is an apocalyptic number.

123212220303223 is a deficient number, since it is larger than the sum of its proper divisors (48428945).

123212220303223 is an equidigital number, since it uses as much as digits as its factorization.

123212220303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48428944.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123212220303223 its reverse (322303022212321), we get a palindrome (445515242515544).

The spelling of 123212220303223 in words is "one hundred twenty-three trillion, two hundred twelve billion, two hundred twenty million, three hundred three thousand, two hundred twenty-three".