321201302421 has 8 divisors (see below), whose sum is σ = 429369351840. Its totient is φ = 213583727312.

The previous prime is 321201302419. The next prime is 321201302501. The reversal of 321201302421 is 124203102123.

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

It is a cyclic number.

It is not a de Polignac number, because 321201302421 - 2¹ = 321201302419 is a prime.

It is a super-2 number, since 2×321201302421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321201302021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137617215 + ... + 137619548.

It is an arithmetic number, because the mean of its divisors is an integer number (53671168980).

Almost surely, 2^321201302421 is an apocalyptic number.

It is an amenable number.

321201302421 is a deficient number, since it is larger than the sum of its proper divisors (108168049419).

321201302421 is a wasteful number, since it uses less digits than its factorization.

321201302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275237155.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 321201302421 its reverse (124203102123), we get a palindrome (445404404544).

The spelling of 321201302421 in words is "three hundred twenty-one billion, two hundred one million, three hundred two thousand, four hundred twenty-one".