12581123 has 2 divisors, whose sum is σ = 12581124. Its totient is φ = 12581122.

The previous prime is 12581119. The next prime is 12581183. The reversal of 12581123 is 32118521.

It is a happy number.

12581123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12581123 - 2² = 12581119 is a prime.

It is a super-2 number, since 2×12581123² = 316569311882258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12581183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6290561 + 6290562.

It is an arithmetic number, because the mean of its divisors is an integer number (6290562).

Almost surely, 2^12581123 is an apocalyptic number.

12581123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12581123 is an equidigital number, since it uses as much as digits as its factorization.

12581123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 12581123 is about 3546.9878770585. The cubic root of 12581123 is about 232.5804123134.

Adding to 12581123 its reverse (32118521), we get a palindrome (44699644).

The spelling of 12581123 in words is "twelve million, five hundred eighty-one thousand, one hundred twenty-three".