31130312303 has 2 divisors, whose sum is σ = 31130312304. Its totient is φ = 31130312302.

The previous prime is 31130312281. The next prime is 31130312321. The reversal of 31130312303 is 30321303113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31130312303 - 2¹⁰ = 31130311279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31130312333) 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, 15565156151 + 15565156152.

It is an arithmetic number, because the mean of its divisors is an integer number (15565156152).

Almost surely, 2^31130312303 is an apocalyptic number.

31130312303 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130312303 is an equidigital number, since it uses as much as digits as its factorization.

31130312303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31130312303 its reverse (30321303113), we get a palindrome (61451615416).

The spelling of 31130312303 in words is "thirty-one billion, one hundred thirty million, three hundred twelve thousand, three hundred three".