200123231 has 24 divisors (see below), whose sum is σ = 252487200. Its totient is φ = 155263680.

The previous prime is 200123191. The next prime is 200123233. The reversal of 200123231 is 132321002.

200123231 = 414² + 415² + ... + 875².

It is a happy number.

It is not a de Polignac number, because 200123231 - 2²⁶ = 133014367 is a prime.

It is a super-2 number, since 2×200123231² = 80098615171758722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200123233) 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 23 ways as a sum of consecutive naturals, for example, 295265 + ... + 295941.

It is an arithmetic number, because the mean of its divisors is an integer number (10520300).

Almost surely, 2^200123231 is an apocalyptic number.

200123231 is a deficient number, since it is larger than the sum of its proper divisors (52363969).

200123231 is a wasteful number, since it uses less digits than its factorization.

200123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 200123231 is about 14146.4918265979. The cubic root of 200123231 is about 584.9236328589.

Adding to 200123231 its reverse (132321002), we get a palindrome (332444233).

The spelling of 200123231 in words is "two hundred million, one hundred twenty-three thousand, two hundred thirty-one".