203412433430 has 16 divisors (see below), whose sum is σ = 370553735664. Its totient is φ = 80384672160.

The previous prime is 203412433387. The next prime is 203412433489. The reversal of 203412433430 is 34334214302.

It is a junction number, because it is equal to n+sod(n) for n = 203412433393 and 203412433402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122536781 + ... + 122538440.

It is an arithmetic number, because the mean of its divisors is an integer number (23159608479).

Almost surely, 2^203412433430 is an apocalyptic number.

203412433430 is a deficient number, since it is larger than the sum of its proper divisors (167141302234).

203412433430 is a wasteful number, since it uses less digits than its factorization.

203412433430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245075311.

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

Adding to 203412433430 its reverse (34334214302), we get a palindrome (237746647732).

The spelling of 203412433430 in words is "two hundred three billion, four hundred twelve million, four hundred thirty-three thousand, four hundred thirty".