200312031 has 8 divisors (see below), whose sum is σ = 269676160. Its totient is φ = 132244632.

The previous prime is 200312027. The next prime is 200312039. The reversal of 200312031 is 130213002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200312031 - 2² = 200312027 is a prime.

It is a super-2 number, since 2×200312031² = 80249819526689922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200311998 and 200312016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200312039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323821 + ... + 324438.

It is an arithmetic number, because the mean of its divisors is an integer number (33709520).

Almost surely, 2^200312031 is an apocalyptic number.

200312031 is a deficient number, since it is larger than the sum of its proper divisors (69364129).

200312031 is a wasteful number, since it uses less digits than its factorization.

200312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648365.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 200312031 is about 14153.1632859937. The cubic root of 200312031 is about 585.1075176768.

Adding to 200312031 its reverse (130213002), we get a palindrome (330525033).

The spelling of 200312031 in words is "two hundred million, three hundred twelve thousand, thirty-one".