31316463203 has 2 divisors, whose sum is σ = 31316463204. Its totient is φ = 31316463202.

The previous prime is 31316463193. The next prime is 31316463229. The reversal of 31316463203 is 30236461313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31316463203 - 2⁴ = 31316463187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31316463203.

It is not a weakly prime, because it can be changed into another prime (31316463103) 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 as a sum of consecutive naturals, namely, 15658231601 + 15658231602.

It is an arithmetic number, because the mean of its divisors is an integer number (15658231602).

Almost surely, 2^31316463203 is an apocalyptic number.

31316463203 is a deficient number, since it is larger than the sum of its proper divisors (1).

31316463203 is an equidigital number, since it uses as much as digits as its factorization.

31316463203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 31316463203 in words is "thirty-one billion, three hundred sixteen million, four hundred sixty-three thousand, two hundred three".