20313303223 has 2 divisors, whose sum is σ = 20313303224. Its totient is φ = 20313303222.

The previous prime is 20313303221. The next prime is 20313303233. The reversal of 20313303223 is 32230331302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20313303223 - 2¹ = 20313303221 is a prime.

Together with 20313303221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20313303194 and 20313303203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20313303221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156651611 + 10156651612.

It is an arithmetic number, because the mean of its divisors is an integer number (10156651612).

Almost surely, 2^20313303223 is an apocalyptic number.

20313303223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313303223 is an equidigital number, since it uses as much as digits as its factorization.

20313303223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20313303223 its reverse (32230331302), we get a palindrome (52543634525).

The spelling of 20313303223 in words is "twenty billion, three hundred thirteen million, three hundred three thousand, two hundred twenty-three".