321420021321413 has 8 divisors (see below), whose sum is σ = 367340574308928. Its totient is φ = 275500320105024.

The previous prime is 321420021321383. The next prime is 321420021321463. The reversal of 321420021321413 is 314123120024123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321420021321413 - 2¹⁰ = 321420021320389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321420021321463) 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 7 ways as a sum of consecutive naturals, for example, 212133956 + ... + 213643757.

It is an arithmetic number, because the mean of its divisors is an integer number (45917571788616).

Almost surely, 2^{321420021321413} is an apocalyptic number.

It is an amenable number.

321420021321413 is a deficient number, since it is larger than the sum of its proper divisors (45920552987515).

321420021321413 is a wasteful number, since it uses less digits than its factorization.

321420021321413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425885563.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321420021321413 its reverse (314123120024123), we get a palindrome (635543141345536).

The spelling of 321420021321413 in words is "three hundred twenty-one trillion, four hundred twenty billion, twenty-one million, three hundred twenty-one thousand, four hundred thirteen".