20313222303131 has 8 divisors (see below), whose sum is σ = 21206214543264. Its totient is φ = 19421047451520.

The previous prime is 20313222303089. The next prime is 20313222303139. The reversal of 20313222303131 is 13130322231302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20313222303131 is a prime.

It is a super-2 number, since 2×20313222303131² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20313222303131.

It is not an unprimeable number, because it can be changed into a prime (20313222303139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204296336 + ... + 204395741.

It is an arithmetic number, because the mean of its divisors is an integer number (2650776817908).

Almost surely, 2^{20313222303131} is an apocalyptic number.

20313222303131 is a deficient number, since it is larger than the sum of its proper divisors (892992240133).

20313222303131 is a wasteful number, since it uses less digits than its factorization.

20313222303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408694261.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20313222303131 its reverse (13130322231302), we get a palindrome (33443544534433).

The spelling of 20313222303131 in words is "twenty trillion, three hundred thirteen billion, two hundred twenty-two million, three hundred three thousand, one hundred thirty-one".