321421034431401 has 4 divisors (see below), whose sum is σ = 428561379241872. Its totient is φ = 214280689620932.

The previous prime is 321421034431391. The next prime is 321421034431417. The reversal of 321421034431401 is 104134430124123.

It is a happy number.

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 321421034431401 - 2⁵ = 321421034431369 is a prime.

It is a super-2 number, since 2×321421034431401² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321421034431481) 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, 53570172405231 + ... + 53570172405236.

It is an arithmetic number, because the mean of its divisors is an integer number (107140344810468).

Almost surely, 2^{321421034431401} is an apocalyptic number.

It is an amenable number.

321421034431401 is a deficient number, since it is larger than the sum of its proper divisors (107140344810471).

321421034431401 is a wasteful number, since it uses less digits than its factorization.

321421034431401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107140344810470.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 321421034431401 its reverse (104134430124123), we get a palindrome (425555464555524).

The spelling of 321421034431401 in words is "three hundred twenty-one trillion, four hundred twenty-one billion, thirty-four million, four hundred thirty-one thousand, four hundred one".