32404431121 has 2 divisors, whose sum is σ = 32404431122. Its totient is φ = 32404431120.

The previous prime is 32404431109. The next prime is 32404431149. The reversal of 32404431121 is 12113440423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25784330625 + 6620100496 = 160575^2 + 81364^2 .

It is a cyclic number.

It is not a de Polignac number, because 32404431121 - 2¹⁹ = 32403906833 is a prime.

It is not a weakly prime, because it can be changed into another prime (32404431181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16202215560 + 16202215561.

It is an arithmetic number, because the mean of its divisors is an integer number (16202215561).

Almost surely, 2^32404431121 is an apocalyptic number.

It is an amenable number.

32404431121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32404431121 is an equidigital number, since it uses as much as digits as its factorization.

32404431121 is an evil number, because the sum of its binary digits is even.

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

Adding to 32404431121 its reverse (12113440423), we get a palindrome (44517871544).

The spelling of 32404431121 in words is "thirty-two billion, four hundred four million, four hundred thirty-one thousand, one hundred twenty-one".