20131323212323 has 8 divisors (see below), whose sum is σ = 20182927158576. Its totient is φ = 20079737210400.

The previous prime is 20131323212303. The next prime is 20131323212369. The reversal of 20131323212323 is 32321232313102.

It is a happy number.

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 20131323212323 - 2⁵ = 20131323212291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131323212291 and 20131323212300.

It is not an unprimeable number, because it can be changed into a prime (20131323212303) 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, 2238013 + ... + 6728398.

It is an arithmetic number, because the mean of its divisors is an integer number (2522865894822).

Almost surely, 2^{20131323212323} is an apocalyptic number.

20131323212323 is a deficient number, since it is larger than the sum of its proper divisors (51603946253).

20131323212323 is an equidigital number, since it uses as much as digits as its factorization.

20131323212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972165.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 20131323212323 its reverse (32321232313102), we get a palindrome (52452555525425).

The spelling of 20131323212323 in words is "twenty trillion, one hundred thirty-one billion, three hundred twenty-three million, two hundred twelve thousand, three hundred twenty-three".