203423034 has 16 divisors (see below), whose sum is σ = 409284288. Its totient is φ = 67401312.

The previous prime is 203423029. The next prime is 203423069. The reversal of 203423034 is 430324302.

It is a self number, because there is not a number n which added to its sum of digits gives 203423034.

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, 100507 + ... + 102510.

It is an arithmetic number, because the mean of its divisors is an integer number (25580268).

Almost surely, 2^203423034 is an apocalyptic number.

203423034 is an abundant number, since it is smaller than the sum of its proper divisors (205861254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203423034 is a wasteful number, since it uses less digits than its factorization.

203423034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203189.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 203423034 is about 14262.6447056638. The cubic root of 203423034 is about 588.1210299708.

Adding to 203423034 its reverse (430324302), we get a palindrome (633747336).

The spelling of 203423034 in words is "two hundred three million, four hundred twenty-three thousand, thirty-four".