421301432321 has 8 divisors (see below), whose sum is σ = 525258928704. Its totient is φ = 328286830320.

The previous prime is 421301432309. The next prime is 421301432329. The reversal of 421301432321 is 123234103124.

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 421301432321 - 2¹⁴ = 421301415937 is a prime.

It is a super-2 number, since 2×421301432321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421301432329) 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, 2735723510 + ... + 2735723663.

It is an arithmetic number, because the mean of its divisors is an integer number (65657366088).

Almost surely, 2^421301432321 is an apocalyptic number.

It is an amenable number.

421301432321 is a deficient number, since it is larger than the sum of its proper divisors (103957496383).

421301432321 is a wasteful number, since it uses less digits than its factorization.

421301432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471447191.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 421301432321 its reverse (123234103124), we get a palindrome (544535535445).

The spelling of 421301432321 in words is "four hundred twenty-one billion, three hundred one million, four hundred thirty-two thousand, three hundred twenty-one".