32304121021 has 4 divisors (see below), whose sum is σ = 34204363452. Its totient is φ = 30403878592.

The previous prime is 32304121019. The next prime is 32304121049. The reversal of 32304121021 is 12012140323.

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 26119084996 + 6185036025 = 161614^2 + 78645^2 .

It is a cyclic number.

It is not a de Polignac number, because 32304121021 - 2¹ = 32304121019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32304121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32304121121) 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, 950121190 + ... + 950121223.

It is an arithmetic number, because the mean of its divisors is an integer number (8551090863).

Almost surely, 2^32304121021 is an apocalyptic number.

It is an amenable number.

32304121021 is a deficient number, since it is larger than the sum of its proper divisors (1900242431).

32304121021 is a wasteful number, since it uses less digits than its factorization.

32304121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900242430.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 32304121021 its reverse (12012140323), we get a palindrome (44316261344).

The spelling of 32304121021 in words is "thirty-two billion, three hundred four million, one hundred twenty-one thousand, twenty-one".