321223210031421 has 24 divisors (see below), whose sum is σ = 467378959966464. Its totient is φ = 212584267955520.

The previous prime is 321223210031417. The next prime is 321223210031447. The reversal of 321223210031421 is 124130012322123.

321223210031421 is a `hidden beast` number, since 3 + 2 + 1 + 2 + 2 + 321 + 0 + 0 + 314 + 21 = 666.

It is not a de Polignac number, because 321223210031421 - 2² = 321223210031417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321223210031411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205218870 + ... + 206778216.

It is an arithmetic number, because the mean of its divisors is an integer number (19474123331936).

Almost surely, 2^{321223210031421} is an apocalyptic number.

It is an amenable number.

321223210031421 is a deficient number, since it is larger than the sum of its proper divisors (146155749935043).

321223210031421 is a wasteful number, since it uses less digits than its factorization.

321223210031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726561 (or 1726558 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 321223210031421 its reverse (124130012322123), we get a palindrome (445353222353544).

The spelling of 321223210031421 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, two hundred ten million, thirty-one thousand, four hundred twenty-one".