214321212321 has 4 divisors (see below), whose sum is σ = 285761616432. Its totient is φ = 142880808212.

The previous prime is 214321212319. The next prime is 214321212461. The reversal of 214321212321 is 123212123412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214321212321 - 2¹ = 214321212319 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 214321212291 and 214321212300.

It is not an unprimeable number, because it can be changed into a prime (214321210321) 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, 35720202051 + ... + 35720202056.

It is an arithmetic number, because the mean of its divisors is an integer number (71440404108).

Almost surely, 2^214321212321 is an apocalyptic number.

It is an amenable number.

214321212321 is a deficient number, since it is larger than the sum of its proper divisors (71440404111).

214321212321 is an equidigital number, since it uses as much as digits as its factorization.

214321212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71440404110.

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

Adding to 214321212321 its reverse (123212123412), we get a palindrome (337533335733).

The spelling of 214321212321 in words is "two hundred fourteen billion, three hundred twenty-one million, two hundred twelve thousand, three hundred twenty-one".