32135324021 has 4 divisors (see below), whose sum is σ = 32135767500. Its totient is φ = 32134880544.

The previous prime is 32135324003. The next prime is 32135324059. The reversal of 32135324021 is 12042353123.

It is a happy number.

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 19463319121 + 12672004900 = 139511^2 + 112570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32135324021 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 (32135324521) 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, 84896 + ... + 267353.

It is an arithmetic number, because the mean of its divisors is an integer number (8033941875).

Almost surely, 2^32135324021 is an apocalyptic number.

It is an amenable number.

32135324021 is a deficient number, since it is larger than the sum of its proper divisors (443479).

32135324021 is an equidigital number, since it uses as much as digits as its factorization.

32135324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443478.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 32135324021 its reverse (12042353123), we get a palindrome (44177677144).

The spelling of 32135324021 in words is "thirty-two billion, one hundred thirty-five million, three hundred twenty-four thousand, twenty-one".