123500011 has 2 divisors, whose sum is σ = 123500012. Its totient is φ = 123500010.

The previous prime is 123499993. The next prime is 123500059. The reversal of 123500011 is 110005321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123500011 - 2⁵ = 123499979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123499964 and 123500000.

It is not a weakly prime, because it can be changed into another prime (123500071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61750005 + 61750006.

It is an arithmetic number, because the mean of its divisors is an integer number (61750006).

Almost surely, 2^123500011 is an apocalyptic number.

123500011 is a deficient number, since it is larger than the sum of its proper divisors (1).

123500011 is an equidigital number, since it uses as much as digits as its factorization.

123500011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 123500011 is about 11113.0558803598. The cubic root of 123500011 is about 497.9919610214.

Adding to 123500011 its reverse (110005321), we get a palindrome (233505332).

The spelling of 123500011 in words is "one hundred twenty-three million, five hundred thousand, eleven".