20342042107 has 2 divisors, whose sum is σ = 20342042108. Its totient is φ = 20342042106.

The previous prime is 20342042089. The next prime is 20342042173. The reversal of 20342042107 is 70124024302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20342042107 - 2¹⁵ = 20342009339 is a prime.

It is not a weakly prime, because it can be changed into another prime (20342042407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171021053 + 10171021054.

It is an arithmetic number, because the mean of its divisors is an integer number (10171021054).

Almost surely, 2^20342042107 is an apocalyptic number.

20342042107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20342042107 is an equidigital number, since it uses as much as digits as its factorization.

20342042107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20342042107 its reverse (70124024302), we get a palindrome (90466066409).

The spelling of 20342042107 in words is "twenty billion, three hundred forty-two million, forty-two thousand, one hundred seven".