200123151205 has 4 divisors (see below), whose sum is σ = 240147781452. Its totient is φ = 160098520960.

The previous prime is 200123151191. The next prime is 200123151247. The reversal of 200123151205 is 502151321002.

200123151205 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 can be written as a sum of positive squares in 2 ways, for example, as 139792984321 + 60330166884 = 373889^2 + 245622^2 .

It is a de Polignac number, because none of the positive numbers 2^k-200123151205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 20012315116 + ... + 20012315125.

It is an arithmetic number, because the mean of its divisors is an integer number (60036945363).

Almost surely, 2^200123151205 is an apocalyptic number.

It is an amenable number.

200123151205 is a deficient number, since it is larger than the sum of its proper divisors (40024630247).

200123151205 is an equidigital number, since it uses as much as digits as its factorization.

200123151205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40024630246.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 200123151205 its reverse (502151321002), we get a palindrome (702274472207).

The spelling of 200123151205 in words is "two hundred billion, one hundred twenty-three million, one hundred fifty-one thousand, two hundred five".