103112231111 has 2 divisors, whose sum is σ = 103112231112. Its totient is φ = 103112231110.

The previous prime is 103112231107. The next prime is 103112231119. The reversal of 103112231111 is 111132211301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103112231111 - 2² = 103112231107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103112231111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103112231119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51556115555 + 51556115556.

It is an arithmetic number, because the mean of its divisors is an integer number (51556115556).

Almost surely, 2^103112231111 is an apocalyptic number.

103112231111 is a deficient number, since it is larger than the sum of its proper divisors (1).

103112231111 is an equidigital number, since it uses as much as digits as its factorization.

103112231111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 103112231111 its reverse (111132211301), we get a palindrome (214244442412).

It can be divided in two parts, 10311 and 2231111, that added together give a palindrome (2241422).

The spelling of 103112231111 in words is "one hundred three billion, one hundred twelve million, two hundred thirty-one thousand, one hundred eleven".