103112111 has 2 divisors, whose sum is σ = 103112112. Its totient is φ = 103112110.

The previous prime is 103112101. The next prime is 103112137. The reversal of 103112111 is 111211301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103112111 - 2¹⁰ = 103111087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103112092 and 103112101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103112101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51556055 + 51556056.

It is an arithmetic number, because the mean of its divisors is an integer number (51556056).

Almost surely, 2^103112111 is an apocalyptic number.

103112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

103112111 is an equidigital number, since it uses as much as digits as its factorization.

103112111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 103112111 is about 10154.4133754737. The cubic root of 103112111 is about 468.9248261424.

Adding to 103112111 its reverse (111211301), we get a palindrome (214323412).

The spelling of 103112111 in words is "one hundred three million, one hundred twelve thousand, one hundred eleven".