20323653211 has 2 divisors, whose sum is σ = 20323653212. Its totient is φ = 20323653210.

The previous prime is 20323653209. The next prime is 20323653253. The reversal of 20323653211 is 11235632302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323653211 - 2¹ = 20323653209 is a prime.

It is a super-2 number, since 2×20323653211² (a number of 21 digits) contains 22 as substring.

Together with 20323653209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20323653211.

It is not a weakly prime, because it can be changed into another prime (20323653271) 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, 10161826605 + 10161826606.

It is an arithmetic number, because the mean of its divisors is an integer number (10161826606).

Almost surely, 2^20323653211 is an apocalyptic number.

20323653211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323653211 is an equidigital number, since it uses as much as digits as its factorization.

20323653211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 20323653211 in words is "twenty billion, three hundred twenty-three million, six hundred fifty-three thousand, two hundred eleven".