31103324111 has 2 divisors, whose sum is σ = 31103324112. Its totient is φ = 31103324110.

The previous prime is 31103324107. The next prime is 31103324167. The reversal of 31103324111 is 11142330113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31103324111 - 2² = 31103324107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31103324011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551662055 + 15551662056.

It is an arithmetic number, because the mean of its divisors is an integer number (15551662056).

Almost surely, 2^31103324111 is an apocalyptic number.

31103324111 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103324111 is an equidigital number, since it uses as much as digits as its factorization.

31103324111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31103324111 its reverse (11142330113), we get a palindrome (42245654224).

The spelling of 31103324111 in words is "thirty-one billion, one hundred three million, three hundred twenty-four thousand, one hundred eleven".