200120231 has 4 divisors (see below), whose sum is σ = 200162592. Its totient is φ = 200077872.

The previous prime is 200120203. The next prime is 200120251. The reversal of 200120231 is 132021002.

It is a happy number.

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 200120231 - 2²² = 195925927 is a prime.

It is a super-2 number, since 2×200120231² = 80096213710986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120201) 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, 13055 + ... + 23888.

It is an arithmetic number, because the mean of its divisors is an integer number (50040648).

Almost surely, 2^200120231 is an apocalyptic number.

200120231 is a deficient number, since it is larger than the sum of its proper divisors (42361).

200120231 is an equidigital number, since it uses as much as digits as its factorization.

200120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42360.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 200120231 is about 14146.3857928448. The cubic root of 200120231 is about 584.9207100270.

Adding to 200120231 its reverse (132021002), we get a palindrome (332141233).

The spelling of 200120231 in words is "two hundred million, one hundred twenty thousand, two hundred thirty-one".