223213200123 has 4 divisors (see below), whose sum is σ = 297617600168. Its totient is φ = 148808800080.

The previous prime is 223213200083. The next prime is 223213200139. The reversal of 223213200123 is 321002312322.

It is a happy number.

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

It is not a de Polignac number, because 223213200123 - 2¹⁶ = 223213134587 is a prime.

It is a super-3 number, since 3×223213200123³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223213200123.

It is not an unprimeable number, because it can be changed into a prime (223213205123) 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, 37202200018 + ... + 37202200023.

It is an arithmetic number, because the mean of its divisors is an integer number (74404400042).

Almost surely, 2^223213200123 is an apocalyptic number.

223213200123 is a deficient number, since it is larger than the sum of its proper divisors (74404400045).

223213200123 is an equidigital number, since it uses as much as digits as its factorization.

223213200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74404400044.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 223213200123 its reverse (321002312322), we get a palindrome (544215512445).

The spelling of 223213200123 in words is "two hundred twenty-three billion, two hundred thirteen million, two hundred thousand, one hundred twenty-three".