14143212321 has 16 divisors (see below), whose sum is σ = 21571350528. Its totient is φ = 8074414800.

The previous prime is 14143212301. The next prime is 14143212329. The reversal of 14143212321 is 12321234141.

It is not a de Polignac number, because 14143212321 - 2¹¹ = 14143210273 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 14143212291 and 14143212300.

It is not an unprimeable number, because it can be changed into a prime (14143212329) 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, 285745 + ... + 331566.

It is an arithmetic number, because the mean of its divisors is an integer number (1348209408).

Almost surely, 2^14143212321 is an apocalyptic number.

It is an amenable number.

14143212321 is a deficient number, since it is larger than the sum of its proper divisors (7428138207).

14143212321 is a wasteful number, since it uses less digits than its factorization.

14143212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618412.

The product of its digits is 1152, while the sum is 24.

Adding to 14143212321 its reverse (12321234141), we get a palindrome (26464446462).

The spelling of 14143212321 in words is "fourteen billion, one hundred forty-three million, two hundred twelve thousand, three hundred twenty-one".