203431043 has 8 divisors (see below), whose sum is σ = 214269120. Its totient is φ = 192606120.

The previous prime is 203431031. The next prime is 203431057. The reversal of 203431043 is 340134302.

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

It is a cyclic number.

It is not a de Polignac number, because 203431043 - 2²⁴ = 186653827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203431003) 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, 56528 + ... + 60018.

It is an arithmetic number, because the mean of its divisors is an integer number (26783640).

Almost surely, 2^203431043 is an apocalyptic number.

203431043 is a deficient number, since it is larger than the sum of its proper divisors (10838077).

203431043 is a wasteful number, since it uses less digits than its factorization.

203431043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 203431043 is about 14262.9254713050. The cubic root of 203431043 is about 588.1287482045.

Adding to 203431043 its reverse (340134302), we get a palindrome (543565345).

The spelling of 203431043 in words is "two hundred three million, four hundred thirty-one thousand, forty-three".