31313332103 has 2 divisors, whose sum is σ = 31313332104. Its totient is φ = 31313332102.

The previous prime is 31313332079. The next prime is 31313332133. The reversal of 31313332103 is 30123331313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31313332103 - 2¹⁸ = 31313069959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31313332133) 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, 15656666051 + 15656666052.

It is an arithmetic number, because the mean of its divisors is an integer number (15656666052).

Almost surely, 2^31313332103 is an apocalyptic number.

31313332103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313332103 is an equidigital number, since it uses as much as digits as its factorization.

31313332103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31313332103 its reverse (30123331313), we get a palindrome (61436663416).

The spelling of 31313332103 in words is "thirty-one billion, three hundred thirteen million, three hundred thirty-two thousand, one hundred three".