123222013 has 8 divisors (see below), whose sum is σ = 126654840. Its totient is φ = 119834880.

The previous prime is 123222007. The next prime is 123222019. The reversal of 123222013 is 310222321.

It is an interprime number because it is at equal distance from previous prime (123222007) and next prime (123222019).

It can be written as a sum of positive squares in 4 ways, for example, as 22781529 + 100440484 = 4773^2 + 10022^2 .

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 123222013 - 2⁵ = 123221981 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 (123222019) 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, 5920 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (15831855).

Almost surely, 2^123222013 is an apocalyptic number.

It is an amenable number.

123222013 is a deficient number, since it is larger than the sum of its proper divisors (3432827).

123222013 is an equidigital number, since it uses as much as digits as its factorization.

123222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22847.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123222013 is about 11100.5411129368. The cubic root of 123222013 is about 497.6180210390.

Adding to 123222013 its reverse (310222321), we get a palindrome (433444334).

It can be divided in two parts, 12 and 3222013, that added together give a square (3222025 = 1795²).

The spelling of 123222013 in words is "one hundred twenty-three million, two hundred twenty-two thousand, thirteen".