200003431 has 4 divisors (see below), whose sum is σ = 202535200. Its totient is φ = 197471664.

The previous prime is 200003393. The next prime is 200003497. The reversal of 200003431 is 134300002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134300002 = 2 ⋅67150001.

It is a cyclic number.

It is not a de Polignac number, because 200003431 - 2⁷ = 200003303 is a prime.

It is a super-2 number, since 2×200003431² = 80002744823543522, 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 (200003231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265766 + ... + 1265923.

It is an arithmetic number, because the mean of its divisors is an integer number (50633800).

Almost surely, 2^200003431 is an apocalyptic number.

200003431 is a deficient number, since it is larger than the sum of its proper divisors (2531769).

200003431 is an equidigital number, since it uses as much as digits as its factorization.

200003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531768.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 200003431 is about 14142.2569273790. The cubic root of 200003431 is about 584.8068917251.

Adding to 200003431 its reverse (134300002), we get a palindrome (334303433).

The spelling of 200003431 in words is "two hundred million, three thousand, four hundred thirty-one".