20346512614513 has 2 divisors, whose sum is σ = 20346512614514. Its totient is φ = 20346512614512.

The previous prime is 20346512614433. The next prime is 20346512614573. The reversal of 20346512614513 is 31541621564302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17967493260864 + 2379019353649 = 4238808^2 + 1542407^2 .

It is a cyclic number.

It is not a de Polignac number, because 20346512614513 - 2¹⁷ = 20346512483441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20346512614513.

It is not a weakly prime, because it can be changed into another prime (20346512614573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173256307256 + 10173256307257.

It is an arithmetic number, because the mean of its divisors is an integer number (10173256307257).

Almost surely, 2^{20346512614513} is an apocalyptic number.

It is an amenable number.

20346512614513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346512614513 is an equidigital number, since it uses as much as digits as its factorization.

20346512614513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 20346512614513 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, six hundred fourteen thousand, five hundred thirteen".