31930203 has 8 divisors (see below), whose sum is σ = 44814400. Its totient is φ = 20166408.

The previous prime is 31930193. The next prime is 31930207. The reversal of 31930203 is 30203913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31930203 - 2⁶ = 31930139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31930203.

It is not an unprimeable number, because it can be changed into a prime (31930207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280033 + ... + 280146.

It is an arithmetic number, because the mean of its divisors is an integer number (5601800).

Almost surely, 2^31930203 is an apocalyptic number.

31930203 is a deficient number, since it is larger than the sum of its proper divisors (12884197).

31930203 is a wasteful number, since it uses less digits than its factorization.

31930203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560201.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 31930203 is about 5650.6816402979. The cubic root of 31930203 is about 317.2492177201.

The spelling of 31930203 in words is "thirty-one million, nine hundred thirty thousand, two hundred three".