12123110321223 has 16 divisors (see below), whose sum is σ = 17638629004416. Its totient is φ = 7345250425440.

The previous prime is 12123110321219. The next prime is 12123110321227. The reversal of 12123110321223 is 32212301132121.

It is an interprime number because it is at equal distance from previous prime (12123110321219) and next prime (12123110321227).

It is not a de Polignac number, because 12123110321223 - 2² = 12123110321219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12123110321193 and 12123110321202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123110321227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52111261 + ... + 52343382.

It is an arithmetic number, because the mean of its divisors is an integer number (1102414312776).

Almost surely, 2^{12123110321223} is an apocalyptic number.

12123110321223 is a deficient number, since it is larger than the sum of its proper divisors (5515518683193).

12123110321223 is a wasteful number, since it uses less digits than its factorization.

12123110321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104458174.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12123110321223 its reverse (32212301132121), we get a palindrome (44335411453344).

The spelling of 12123110321223 in words is "twelve trillion, one hundred twenty-three billion, one hundred ten million, three hundred twenty-one thousand, two hundred twenty-three".