200231031 has 96 divisors (see below), whose sum is σ = 377782272. Its totient is φ = 91428480.

The previous prime is 200231023. The next prime is 200231033. The reversal of 200231031 is 130132002.

It is a happy number.

It is not a de Polignac number, because 200231031 - 2³ = 200231023 is a prime.

It is a super-2 number, since 2×200231031² = 80184931550645922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200230998 and 200231016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200231033) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 897786 + ... + 898008.

It is an arithmetic number, because the mean of its divisors is an integer number (3935232).

Almost surely, 2^200231031 is an apocalyptic number.

200231031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

200231031 is a deficient number, since it is larger than the sum of its proper divisors (177551241).

200231031 is a wasteful number, since it uses less digits than its factorization.

200231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 280 counting only the distinct ones).

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

The square root of 200231031 is about 14150.3014455523. The cubic root of 200231031 is about 585.0286405731.

Adding to 200231031 its reverse (130132002), we get a palindrome (330363033).

It can be divided in two parts, 2002 and 31031, that added together give a palindrome (33033).

The spelling of 200231031 in words is "two hundred million, two hundred thirty-one thousand, thirty-one".