203320542 has 16 divisors (see below), whose sum is σ = 408264192. Its totient is φ = 67503000.

The previous prime is 203320541. The next prime is 203320553. The reversal of 203320542 is 245023302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203320541) 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, 65998 + ... + 69009.

It is an arithmetic number, because the mean of its divisors is an integer number (25516512).

Almost surely, 2^203320542 is an apocalyptic number.

203320542 is an abundant number, since it is smaller than the sum of its proper divisors (204943650).

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

203320542 is a wasteful number, since it uses less digits than its factorization.

203320542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135263.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 203320542 is about 14259.0512307096. The cubic root of 203320542 is about 588.0222410487.

Adding to 203320542 its reverse (245023302), we get a palindrome (448343844).

The spelling of 203320542 in words is "two hundred three million, three hundred twenty thousand, five hundred forty-two".