32132421421 has 4 divisors (see below), whose sum is σ = 32141173372. Its totient is φ = 32123669472.

The previous prime is 32132421407. The next prime is 32132421473. The reversal of 32132421421 is 12412423123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13274265796 + 18858155625 = 115214^2 + 137325^2 .

It is a cyclic number.

It is not a de Polignac number, because 32132421421 - 2⁹ = 32132420909 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 (32132421401) 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, 4370466 + ... + 4377811.

It is an arithmetic number, because the mean of its divisors is an integer number (8035293343).

Almost surely, 2^32132421421 is an apocalyptic number.

It is an amenable number.

32132421421 is a deficient number, since it is larger than the sum of its proper divisors (8751951).

32132421421 is an equidigital number, since it uses as much as digits as its factorization.

32132421421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751950.

The product of its digits is 2304, while the sum is 25.

Adding to 32132421421 its reverse (12412423123), we get a palindrome (44544844544).

The spelling of 32132421421 in words is "thirty-two billion, one hundred thirty-two million, four hundred twenty-one thousand, four hundred twenty-one".