103511123 has 2 divisors, whose sum is σ = 103511124. Its totient is φ = 103511122.

The previous prime is 103511117. The next prime is 103511131. The reversal of 103511123 is 321115301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103511123 - 2⁶ = 103511059 is a prime.

It is a super-2 number, since 2×103511123² = 21429105169442258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103511143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51755561 + 51755562.

It is an arithmetic number, because the mean of its divisors is an integer number (51755562).

Almost surely, 2^103511123 is an apocalyptic number.

103511123 is a deficient number, since it is larger than the sum of its proper divisors (1).

103511123 is an equidigital number, since it uses as much as digits as its factorization.

103511123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 103511123 is about 10174.0416256274. The cubic root of 103511123 is about 469.5289123167.

Adding to 103511123 its reverse (321115301), we get a palindrome (424626424).

The spelling of 103511123 in words is "one hundred three million, five hundred eleven thousand, one hundred twenty-three".