31204040203 has 18 divisors (see below), whose sum is σ = 37087448316. Its totient is φ = 26177158728.

The previous prime is 31204040201. The next prime is 31204040207. The reversal of 31204040203 is 30204040213.

It is not a de Polignac number, because 31204040203 - 2¹ = 31204040201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31204040201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35901 + ... + 252382.

Almost surely, 2^31204040203 is an apocalyptic number.

31204040203 is a deficient number, since it is larger than the sum of its proper divisors (5883408113).

31204040203 is an equidigital number, since it uses as much as digits as its factorization.

31204040203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288391 (or 288337 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 31204040203 its reverse (30204040213), we get a palindrome (61408080416).

The spelling of 31204040203 in words is "thirty-one billion, two hundred four million, forty thousand, two hundred three".