12342210321 has 16 divisors (see below), whose sum is σ = 19244555264. Its totient is φ = 6888675024.

The previous prime is 12342210319. The next prime is 12342210359. The reversal of 12342210321 is 12301224321.

It is not a de Polignac number, because 12342210321 - 2¹ = 12342210319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12342210301) 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, 6833101 + ... + 6834906.

It is an arithmetic number, because the mean of its divisors is an integer number (1202784704).

Almost surely, 2^12342210321 is an apocalyptic number.

It is an amenable number.

12342210321 is a deficient number, since it is larger than the sum of its proper divisors (6902344943).

12342210321 is a wasteful number, since it uses less digits than its factorization.

12342210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668060.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12342210321 its reverse (12301224321), we get a palindrome (24643434642).

The spelling of 12342210321 in words is "twelve billion, three hundred forty-two million, two hundred ten thousand, three hundred twenty-one".