123121222223 has 8 divisors (see below), whose sum is σ = 127394662080. Its totient is φ = 118849641120.

The previous prime is 123121222193. The next prime is 123121222241. The reversal of 123121222223 is 322222121321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123121222223 - 2⁸ = 123121221967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123121222723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329240 + ... + 595517.

It is an arithmetic number, because the mean of its divisors is an integer number (15924332760).

Almost surely, 2^123121222223 is an apocalyptic number.

123121222223 is a deficient number, since it is larger than the sum of its proper divisors (4273439857).

123121222223 is an equidigital number, since it uses as much as digits as its factorization.

123121222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929377.

The product of its digits is 1152, while the sum is 23.

Adding to 123121222223 its reverse (322222121321), we get a palindrome (445343343544).

The spelling of 123121222223 in words is "one hundred twenty-three billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-three".