20123213323 has 8 divisors (see below), whose sum is σ = 20471814720. Its totient is φ = 19775215680.

The previous prime is 20123213317. The next prime is 20123213339. The reversal of 20123213323 is 32331232102.

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

It is a cyclic number.

It is not a de Polignac number, because 20123213323 - 2²⁵ = 20089658891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123213294 and 20123213303.

It is not an unprimeable number, because it can be changed into a prime (20123213393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83443 + ... + 217276.

It is an arithmetic number, because the mean of its divisors is an integer number (2558976840).

Almost surely, 2^20123213323 is an apocalyptic number.

20123213323 is a deficient number, since it is larger than the sum of its proper divisors (348601397).

20123213323 is a wasteful number, since it uses less digits than its factorization.

20123213323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301877.

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

Adding to 20123213323 its reverse (32331232102), we get a palindrome (52454445425).

The spelling of 20123213323 in words is "twenty billion, one hundred twenty-three million, two hundred thirteen thousand, three hundred twenty-three".