20313243212323 has 4 divisors (see below), whose sum is σ = 20315063569680. Its totient is φ = 20311422854968.

The previous prime is 20313243212321. The next prime is 20313243212389. The reversal of 20313243212323 is 32321234231302.

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

It is a cyclic number.

It is not a de Polignac number, because 20313243212323 - 2¹ = 20313243212321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313243212321) 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, 910161940 + ... + 910184257.

It is an arithmetic number, because the mean of its divisors is an integer number (5078765892420).

Almost surely, 2^{20313243212323} is an apocalyptic number.

20313243212323 is a deficient number, since it is larger than the sum of its proper divisors (1820357357).

20313243212323 is a wasteful number, since it uses less digits than its factorization.

20313243212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820357356.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 20313243212323 its reverse (32321234231302), we get a palindrome (52634477443625).

The spelling of 20313243212323 in words is "twenty trillion, three hundred thirteen billion, two hundred forty-three million, two hundred twelve thousand, three hundred twenty-three".