203431422 has 16 divisors (see below), whose sum is σ = 416786832. Its totient is φ = 66156480.

The previous prime is 203431421. The next prime is 203431427. The reversal of 203431422 is 224134302.

203431422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203431421) 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, 413233 + ... + 413724.

It is an arithmetic number, because the mean of its divisors is an integer number (26049177).

Almost surely, 2^203431422 is an apocalyptic number.

203431422 is an abundant number, since it is smaller than the sum of its proper divisors (213355410).

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

203431422 is a wasteful number, since it uses less digits than its factorization.

203431422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827003.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 203431422 is about 14262.9387574931. The cubic root of 203431422 is about 588.1291134399.

Adding to 203431422 its reverse (224134302), we get a palindrome (427565724).

The spelling of 203431422 in words is "two hundred three million, four hundred thirty-one thousand, four hundred twenty-two".