20043342097 has 2 divisors, whose sum is σ = 20043342098. Its totient is φ = 20043342096.

The previous prime is 20043342071. The next prime is 20043342127. The reversal of 20043342097 is 79024334002.

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., 19145980161 + 897361936 = 138369^2 + 29956^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043342097 - 2¹⁵ = 20043309329 is a prime.

It is not a weakly prime, because it can be changed into another prime (20043342997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021671048 + 10021671049.

It is an arithmetic number, because the mean of its divisors is an integer number (10021671049).

Almost surely, 2^20043342097 is an apocalyptic number.

It is an amenable number.

20043342097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043342097 is an equidigital number, since it uses as much as digits as its factorization.

20043342097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 20043342097 its reverse (79024334002), we get a palindrome (99067676099).

The spelling of 20043342097 in words is "twenty billion, forty-three million, three hundred forty-two thousand, ninety-seven".