20113212323 has 2 divisors, whose sum is σ = 20113212324. Its totient is φ = 20113212322.

The previous prime is 20113212307. The next prime is 20113212367. The reversal of 20113212323 is 32321231102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20113212323 - 2⁴ = 20113212307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20113212295 and 20113212304.

It is not a weakly prime, because it can be changed into another prime (20113212923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056606161 + 10056606162.

It is an arithmetic number, because the mean of its divisors is an integer number (10056606162).

Almost surely, 2^20113212323 is an apocalyptic number.

20113212323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113212323 is an equidigital number, since it uses as much as digits as its factorization.

20113212323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20113212323 its reverse (32321231102), we get a palindrome (52434443425).

The spelling of 20113212323 in words is "twenty billion, one hundred thirteen million, two hundred twelve thousand, three hundred twenty-three".