31103201203 has 2 divisors, whose sum is σ = 31103201204. Its totient is φ = 31103201202.

The previous prime is 31103201197. The next prime is 31103201221. The reversal of 31103201203 is 30210230113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31103201203 is a prime.

It is not a weakly prime, because it can be changed into another prime (31103201273) 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 as a sum of consecutive naturals, namely, 15551600601 + 15551600602.

It is an arithmetic number, because the mean of its divisors is an integer number (15551600602).

Almost surely, 2^31103201203 is an apocalyptic number.

31103201203 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103201203 is an equidigital number, since it uses as much as digits as its factorization.

31103201203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31103201203 its reverse (30210230113), we get a palindrome (61313431316).

The spelling of 31103201203 in words is "thirty-one billion, one hundred three million, two hundred one thousand, two hundred three".