20340432241 has 2 divisors, whose sum is σ = 20340432242. Its totient is φ = 20340432240.

The previous prime is 20340432239. The next prime is 20340432253. The reversal of 20340432241 is 14223404302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17010680625 + 3329751616 = 130425^2 + 57704^2 .

It is a cyclic number.

It is not a de Polignac number, because 20340432241 - 2¹ = 20340432239 is a prime.

Together with 20340432239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20340402241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170216120 + 10170216121.

It is an arithmetic number, because the mean of its divisors is an integer number (10170216121).

Almost surely, 2^20340432241 is an apocalyptic number.

It is an amenable number.

20340432241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20340432241 is an equidigital number, since it uses as much as digits as its factorization.

20340432241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20340432241 its reverse (14223404302), we get a palindrome (34563836543).

The spelling of 20340432241 in words is "twenty billion, three hundred forty million, four hundred thirty-two thousand, two hundred forty-one".