203412331 has 8 divisors (see below), whose sum is σ = 205680384. Its totient is φ = 201150120.

The previous prime is 203412323. The next prime is 203412337. The reversal of 203412331 is 133214302.

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 203412331 - 2³ = 203412323 is a prime.

It is a super-2 number, since 2×203412331² = 82753152805707122, 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 = 203412299 and 203412308.

It is not an unprimeable number, because it can be changed into a prime (203412337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133866 + ... + 135376.

It is an arithmetic number, because the mean of its divisors is an integer number (25710048).

Almost surely, 2^203412331 is an apocalyptic number.

203412331 is a deficient number, since it is larger than the sum of its proper divisors (2268053).

203412331 is a wasteful number, since it uses less digits than its factorization.

203412331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 203412331 is about 14262.2694898112. The cubic root of 203412331 is about 588.1107152265.

Adding to 203412331 its reverse (133214302), we get a palindrome (336626633).

It can be divided in two parts, 2034 and 12331, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 203412331 in words is "two hundred three million, four hundred twelve thousand, three hundred thirty-one".