31132021203 has 6 divisors (see below), whose sum is σ = 44968475084. Its totient is φ = 20754680796.

The previous prime is 31132021201. The next prime is 31132021229. The reversal of 31132021203 is 30212023113.

It is not a de Polignac number, because 31132021203 - 2¹ = 31132021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31132021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1729556725 + ... + 1729556742.

Almost surely, 2^31132021203 is an apocalyptic number.

31132021203 is a deficient number, since it is larger than the sum of its proper divisors (13836453881).

31132021203 is a wasteful number, since it uses less digits than its factorization.

31132021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459113473 (or 3459113470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31132021203 its reverse (30212023113), we get a palindrome (61344044316).

The spelling of 31132021203 in words is "thirty-one billion, one hundred thirty-two million, twenty-one thousand, two hundred three".