200123031011 has 4 divisors (see below), whose sum is σ = 204777055032. Its totient is φ = 195469006992.

The previous prime is 200123030873. The next prime is 200123031019. The reversal of 200123031011 is 110130321002.

200123031011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200123031011 - 2¹⁰ = 200123029987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200123031019) 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 in 3 ways as a sum of consecutive naturals, for example, 2327011946 + ... + 2327012031.

It is an arithmetic number, because the mean of its divisors is an integer number (51194263758).

Almost surely, 2^200123031011 is an apocalyptic number.

200123031011 is a deficient number, since it is larger than the sum of its proper divisors (4654024021).

200123031011 is an equidigital number, since it uses as much as digits as its factorization.

200123031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654024020.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 200123031011 its reverse (110130321002), we get a palindrome (310253352013).

The spelling of 200123031011 in words is "two hundred billion, one hundred twenty-three million, thirty-one thousand, eleven".