20312422343 has 4 divisors (see below), whose sum is σ = 20313218520. Its totient is φ = 20311626168.

The previous prime is 20312422337. The next prime is 20312422349. The reversal of 20312422343 is 34322421302.

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

It is an interprime number because it is at equal distance from previous prime (20312422337) and next prime (20312422349).

It is a cyclic number.

It is not a de Polignac number, because 20312422343 - 2¹⁸ = 20312160199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312422349) 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 3 ways as a sum of consecutive naturals, for example, 358508 + ... + 411281.

It is an arithmetic number, because the mean of its divisors is an integer number (5078304630).

Almost surely, 2^20312422343 is an apocalyptic number.

20312422343 is a deficient number, since it is larger than the sum of its proper divisors (796177).

20312422343 is an equidigital number, since it uses as much as digits as its factorization.

20312422343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796176.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20312422343 its reverse (34322421302), we get a palindrome (54634843645).

The spelling of 20312422343 in words is "twenty billion, three hundred twelve million, four hundred twenty-two thousand, three hundred forty-three".