12210313123 has 4 divisors (see below), whose sum is σ = 12210549120. Its totient is φ = 12210077128.

The previous prime is 12210313109. The next prime is 12210313169. The reversal of 12210313123 is 32131301221.

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

It is a cyclic number.

It is not a de Polignac number, because 12210313123 - 2²⁹ = 11673442211 is a prime.

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 12210313123.

It is not an unprimeable number, because it can be changed into a prime (12210313823) 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, 3088 + ... + 156301.

It is an arithmetic number, because the mean of its divisors is an integer number (3052637280).

Almost surely, 2^12210313123 is an apocalyptic number.

12210313123 is a deficient number, since it is larger than the sum of its proper divisors (235997).

12210313123 is an equidigital number, since it uses as much as digits as its factorization.

12210313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235996.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12210313123 its reverse (32131301221), we get a palindrome (44341614344).

The spelling of 12210313123 in words is "twelve billion, two hundred ten million, three hundred thirteen thousand, one hundred twenty-three".