20346142099 has 2 divisors, whose sum is σ = 20346142100. Its totient is φ = 20346142098.

The previous prime is 20346142081. The next prime is 20346142139. The reversal of 20346142099 is 99024164302.

It is an a-pointer prime, because the next prime (20346142139) can be obtained adding 20346142099 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20346142099 - 2¹¹ = 20346140051 is a prime.

It is not a weakly prime, because it can be changed into another prime (20346142009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173071049 + 10173071050.

It is an arithmetic number, because the mean of its divisors is an integer number (10173071050).

Almost surely, 2^20346142099 is an apocalyptic number.

20346142099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346142099 is an equidigital number, since it uses as much as digits as its factorization.

20346142099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 20346142099 in words is "twenty billion, three hundred forty-six million, one hundred forty-two thousand, ninety-nine".