32421313231 has 4 divisors (see below), whose sum is σ = 32426345464. Its totient is φ = 32416281000.

The previous prime is 32421313229. The next prime is 32421313261. The reversal of 32421313231 is 13231312423.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32421313231 - 2¹ = 32421313229 is a prime.

It is a super-2 number, since 2×32421313231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32421313196 and 32421313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32421313261) 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 3 ways as a sum of consecutive naturals, for example, 2506440 + ... + 2519341.

It is an arithmetic number, because the mean of its divisors is an integer number (8106586366).

Almost surely, 2^32421313231 is an apocalyptic number.

32421313231 is a deficient number, since it is larger than the sum of its proper divisors (5032233).

32421313231 is an equidigital number, since it uses as much as digits as its factorization.

32421313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032232.

The product of its digits is 2592, while the sum is 25.

Adding to 32421313231 its reverse (13231312423), we get a palindrome (45652625654).

The spelling of 32421313231 in words is "thirty-two billion, four hundred twenty-one million, three hundred thirteen thousand, two hundred thirty-one".