103120111 has 2 divisors, whose sum is σ = 103120112. Its totient is φ = 103120110.

The previous prime is 103120103. The next prime is 103120123. The reversal of 103120111 is 111021301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103120111 - 2³ = 103120103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103120411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560055 + 51560056.

It is an arithmetic number, because the mean of its divisors is an integer number (51560056).

Almost surely, 2^103120111 is an apocalyptic number.

103120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

103120111 is an equidigital number, since it uses as much as digits as its factorization.

103120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 103120111 is about 10154.8072852221. The cubic root of 103120111 is about 468.9369530774.

Adding to 103120111 its reverse (111021301), we get a palindrome (214141412).

The spelling of 103120111 in words is "one hundred three million, one hundred twenty thousand, one hundred eleven".