31201313203 has 8 divisors (see below), whose sum is σ = 31932261360. Its totient is φ = 30477102240.

The previous prime is 31201313141. The next prime is 31201313233. The reversal of 31201313203 is 30231310213.

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

It is a cyclic number.

It is not a de Polignac number, because 31201313203 - 2⁹ = 31201312691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31201313233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674928 + ... + 1693453.

It is an arithmetic number, because the mean of its divisors is an integer number (3991532670).

Almost surely, 2^31201313203 is an apocalyptic number.

31201313203 is a deficient number, since it is larger than the sum of its proper divisors (730948157).

31201313203 is a wasteful number, since it uses less digits than its factorization.

31201313203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368597.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31201313203 its reverse (30231310213), we get a palindrome (61432623416).

The spelling of 31201313203 in words is "thirty-one billion, two hundred one million, three hundred thirteen thousand, two hundred three".