203412343 has 4 divisors (see below), whose sum is σ = 203784760. Its totient is φ = 203039928.

The previous prime is 203412337. The next prime is 203412371. The reversal of 203412343 is 343214302.

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 203412343 - 2¹³ = 203404151 is a prime.

It is a super-3 number, since 3×203412343³ (a number of 26 digits) contains 333 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 (203412323) 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, 185388 + ... + 186481.

It is an arithmetic number, because the mean of its divisors is an integer number (50946190).

Almost surely, 2^203412343 is an apocalyptic number.

203412343 is a deficient number, since it is larger than the sum of its proper divisors (372417).

203412343 is an equidigital number, since it uses as much as digits as its factorization.

203412343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372416.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 203412343 is about 14262.2699105016. The cubic root of 203412343 is about 588.1107267914.

Adding to 203412343 its reverse (343214302), we get a palindrome (546626645).

The spelling of 203412343 in words is "two hundred three million, four hundred twelve thousand, three hundred forty-three".