20133320313 has 16 divisors (see below), whose sum is σ = 27674349696. Its totient is φ = 13011423360.

The previous prime is 20133320281. The next prime is 20133320321. The reversal of 20133320313 is 31302333102.

It is not a de Polignac number, because 20133320313 - 2⁵ = 20133320281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20133320313.

It is not an unprimeable number, because it can be changed into a prime (20133320513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501981 + ... + 540602.

It is an arithmetic number, because the mean of its divisors is an integer number (1729646856).

Almost surely, 2^20133320313 is an apocalyptic number.

It is an amenable number.

20133320313 is a deficient number, since it is larger than the sum of its proper divisors (7541029383).

20133320313 is a wasteful number, since it uses less digits than its factorization.

20133320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042784.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20133320313 its reverse (31302333102), we get a palindrome (51435653415).

The spelling of 20133320313 in words is "twenty billion, one hundred thirty-three million, three hundred twenty thousand, three hundred thirteen".