32121031801 has 2 divisors, whose sum is σ = 32121031802. Its totient is φ = 32121031800.

The previous prime is 32121031771. The next prime is 32121031819. The reversal of 32121031801 is 10813012123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28249205625 + 3871826176 = 168075^2 + 62224^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121031801 - 2⁷ = 32121031673 is a prime.

It is not a weakly prime, because it can be changed into another prime (32121035801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060515900 + 16060515901.

It is an arithmetic number, because the mean of its divisors is an integer number (16060515901).

Almost surely, 2^32121031801 is an apocalyptic number.

It is an amenable number.

32121031801 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121031801 is an equidigital number, since it uses as much as digits as its factorization.

32121031801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 32121031801 its reverse (10813012123), we get a palindrome (42934043924).

The spelling of 32121031801 in words is "thirty-two billion, one hundred twenty-one million, thirty-one thousand, eight hundred one".