20523341713 has 4 divisors (see below), whose sum is σ = 23455247680. Its totient is φ = 17591435748.

The previous prime is 20523341651. The next prime is 20523341717. The reversal of 20523341713 is 31714332502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20523341713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20523341717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1465952973 + ... + 1465952986.

It is an arithmetic number, because the mean of its divisors is an integer number (5863811920).

Almost surely, 2^20523341713 is an apocalyptic number.

It is an amenable number.

20523341713 is a deficient number, since it is larger than the sum of its proper divisors (2931905967).

20523341713 is an equidigital number, since it uses as much as digits as its factorization.

20523341713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931905966.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 20523341713 in words is "twenty billion, five hundred twenty-three million, three hundred forty-one thousand, seven hundred thirteen".