200123311 has 2 divisors, whose sum is σ = 200123312. Its totient is φ = 200123310.

The previous prime is 200123293. The next prime is 200123317. The reversal of 200123311 is 113321002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200123311 - 2⁹ = 200122799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200123291 and 200123300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200123317) 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, 100061655 + 100061656.

It is an arithmetic number, because the mean of its divisors is an integer number (100061656).

Almost surely, 2^200123311 is an apocalyptic number.

200123311 is a deficient number, since it is larger than the sum of its proper divisors (1).

200123311 is an equidigital number, since it uses as much as digits as its factorization.

200123311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 200123311 is about 14146.4946541537. The cubic root of 200123311 is about 584.9237108007.

Adding to 200123311 its reverse (113321002), we get a palindrome (313444313).

The spelling of 200123311 in words is "two hundred million, one hundred twenty-three thousand, three hundred eleven".