20346105235051 has 2 divisors, whose sum is σ = 20346105235052. Its totient is φ = 20346105235050.

The previous prime is 20346105234971. The next prime is 20346105235133. The reversal of 20346105235051 is 15053250164302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20346105235051 - 2²³ = 20346096846443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20346105235051.

It is not a weakly prime, because it can be changed into another prime (20346105232051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173052617525 + 10173052617526.

It is an arithmetic number, because the mean of its divisors is an integer number (10173052617526).

Almost surely, 2^{20346105235051} is an apocalyptic number.

20346105235051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346105235051 is an equidigital number, since it uses as much as digits as its factorization.

20346105235051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 20346105235051 its reverse (15053250164302), we get a palindrome (35399355399353).

The spelling of 20346105235051 in words is "twenty trillion, three hundred forty-six billion, one hundred five million, two hundred thirty-five thousand, fifty-one".