321430112223421 has 4 divisors (see below), whose sum is σ = 321444173671200. Its totient is φ = 321416050775644.

The previous prime is 321430112223329. The next prime is 321430112223427. The reversal of 321430112223421 is 124322211034123.

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 321430112223421 - 2²⁵ = 321430078668989 is a prime.

It is a super-2 number, since 2×321430112223421² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321430112223427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7030689601 + ... + 7030735318.

It is an arithmetic number, because the mean of its divisors is an integer number (80361043417800).

Almost surely, 2^{321430112223421} is an apocalyptic number.

It is an amenable number.

321430112223421 is a deficient number, since it is larger than the sum of its proper divisors (14061447779).

321430112223421 is a wasteful number, since it uses less digits than its factorization.

321430112223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14061447778.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 321430112223421 its reverse (124322211034123), we get a palindrome (445752323257544).

The spelling of 321430112223421 in words is "three hundred twenty-one trillion, four hundred thirty billion, one hundred twelve million, two hundred twenty-three thousand, four hundred twenty-one".