203430431234 has 8 divisors (see below), whose sum is σ = 318412848960. Its totient is φ = 97292814916.

The previous prime is 203430431227. The next prime is 203430431261. The reversal of 203430431234 is 432134034302.

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

It is a junction number, because it is equal to n+sod(n) for n = 203430431197 and 203430431206.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2211200294 + ... + 2211200385.

It is an arithmetic number, because the mean of its divisors is an integer number (39801606120).

Almost surely, 2^203430431234 is an apocalyptic number.

203430431234 is a deficient number, since it is larger than the sum of its proper divisors (114982417726).

203430431234 is a wasteful number, since it uses less digits than its factorization.

203430431234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422400704.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 203430431234 its reverse (432134034302), we get a palindrome (635564465536).

The spelling of 203430431234 in words is "two hundred three billion, four hundred thirty million, four hundred thirty-one thousand, two hundred thirty-four".