20203042 has 16 divisors (see below), whose sum is σ = 32340960. Its totient is φ = 9437472.

The previous prime is 20203003. The next prime is 20203049. The reversal of 20203042 is 24030202.

It is not an unprimeable number, because it can be changed into a prime (20203049) 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, 868 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (2021310).

Almost surely, 2^20203042 is an apocalyptic number.

20203042 is a deficient number, since it is larger than the sum of its proper divisors (12137918).

20203042 is a wasteful number, since it uses less digits than its factorization.

20203042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 20203042 is about 4494.7794161672. The cubic root of 20203042 is about 272.3572385785.

Adding to 20203042 its reverse (24030202), we get a palindrome (44233244).

The spelling of 20203042 in words is "twenty million, two hundred three thousand, forty-two".