20346512614523 has 4 divisors (see below), whose sum is σ = 20346756570288. Its totient is φ = 20346268658760.

The previous prime is 20346512614513. The next prime is 20346512614573. The reversal of 20346512614523 is 32541621564302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20346512614523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20346512614513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121852736 + ... + 122019597.

It is an arithmetic number, because the mean of its divisors is an integer number (5086689142572).

Almost surely, 2^{20346512614523} is an apocalyptic number.

20346512614523 is a deficient number, since it is larger than the sum of its proper divisors (243955765).

20346512614523 is an equidigital number, since it uses as much as digits as its factorization.

20346512614523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243955764.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 20346512614523 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, six hundred fourteen thousand, five hundred twenty-three".