203134430 has 16 divisors (see below), whose sum is σ = 367539984. Its totient is φ = 80832000.

The previous prime is 203134409. The next prime is 203134433. The reversal of 203134430 is 34431302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203134433) 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, 50696 + ... + 54555.

It is an arithmetic number, because the mean of its divisors is an integer number (22971249).

Almost surely, 2^203134430 is an apocalyptic number.

203134430 is a deficient number, since it is larger than the sum of its proper divisors (164405554).

203134430 is a wasteful number, since it uses less digits than its factorization.

203134430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105451.

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

The square root of 203134430 is about 14252.5236361846. The cubic root of 203134430 is about 587.8427684401.

Adding to 203134430 its reverse (34431302), we get a palindrome (237565732).

The spelling of 203134430 in words is "two hundred three million, one hundred thirty-four thousand, four hundred thirty".