20133222313 has 4 divisors (see below), whose sum is σ = 20144403028. Its totient is φ = 20122041600.

The previous prime is 20133222289. The next prime is 20133222359. The reversal of 20133222313 is 31322233102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31322233102 = 2 ⋅15661116551.

It can be written as a sum of positive squares in 2 ways, for example, as 10071527449 + 10061694864 = 100357^2 + 100308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133222313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20133220313) 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, 5587656 + ... + 5591257.

It is an arithmetic number, because the mean of its divisors is an integer number (5036100757).

Almost surely, 2^20133222313 is an apocalyptic number.

It is an amenable number.

20133222313 is a deficient number, since it is larger than the sum of its proper divisors (11180715).

20133222313 is a wasteful number, since it uses less digits than its factorization.

20133222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11180714.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20133222313 its reverse (31322233102), we get a palindrome (51455455415).

The spelling of 20133222313 in words is "twenty billion, one hundred thirty-three million, two hundred twenty-two thousand, three hundred thirteen".