20333333313 has 32 divisors (see below), whose sum is σ = 31444872320. Its totient is φ = 12972934080.

The previous prime is 20333333299. The next prime is 20333333369. The reversal of 20333333313 is 31333333302.

It is not a de Polignac number, because 20333333313 - 2⁶ = 20333333249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20333331313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105895 + ... + 227772.

It is an arithmetic number, because the mean of its divisors is an integer number (982652260).

Almost surely, 2^20333333313 is an apocalyptic number.

It is an amenable number.

20333333313 is a deficient number, since it is larger than the sum of its proper divisors (11111539007).

20333333313 is a wasteful number, since it uses less digits than its factorization.

20333333313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333774 (or 333768 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 27.

Adding to 20333333313 its reverse (31333333302), we get a palindrome (51666666615).

It can be divided in two parts, 20 and 333333313, that added together give a palindrome (333333333).

The spelling of 20333333313 in words is "twenty billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred thirteen".