31263103271 has 2 divisors, whose sum is σ = 31263103272. Its totient is φ = 31263103270.

The previous prime is 31263103219. The next prime is 31263103273. The reversal of 31263103271 is 17230136213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31263103271 is a prime.

It is a super-2 number, since 2×31263103271² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 31263103273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31263103273) 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, 15631551635 + 15631551636.

It is an arithmetic number, because the mean of its divisors is an integer number (15631551636).

Almost surely, 2^31263103271 is an apocalyptic number.

31263103271 is a deficient number, since it is larger than the sum of its proper divisors (1).

31263103271 is an equidigital number, since it uses as much as digits as its factorization.

31263103271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 31263103271 its reverse (17230136213), we get a palindrome (48493239484).

The spelling of 31263103271 in words is "thirty-one billion, two hundred sixty-three million, one hundred three thousand, two hundred seventy-one".