20468833313 has 4 divisors (see below), whose sum is σ = 20489120580. Its totient is φ = 20448546048.

The previous prime is 20468833291. The next prime is 20468833373. The reversal of 20468833313 is 31333886402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6201247504 + 14267585809 = 78748^2 + 119447^2 .

It is a cyclic number.

It is not a de Polignac number, because 20468833313 - 2¹⁶ = 20468767777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20468833373) 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, 10142120 + ... + 10144137.

It is an arithmetic number, because the mean of its divisors is an integer number (5122280145).

Almost surely, 2^20468833313 is an apocalyptic number.

It is an amenable number.

20468833313 is a deficient number, since it is larger than the sum of its proper divisors (20287267).

20468833313 is a wasteful number, since it uses less digits than its factorization.

20468833313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20287266.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 20468833313 in words is "twenty billion, four hundred sixty-eight million, eight hundred thirty-three thousand, three hundred thirteen".