13125123 has 24 divisors (see below), whose sum is σ = 20807280. Its totient is φ = 7906560.

The previous prime is 13125113. The next prime is 13125127. The reversal of 13125123 is 32152131.

It is not a de Polignac number, because 13125123 - 2⁴ = 13125107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13125096 and 13125105.

It is not an unprimeable number, because it can be changed into a prime (13125127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22783 + ... + 23351.

It is an arithmetic number, because the mean of its divisors is an integer number (866970).

Almost surely, 2^13125123 is an apocalyptic number.

13125123 is a deficient number, since it is larger than the sum of its proper divisors (7682157).

13125123 is a wasteful number, since it uses less digits than its factorization.

13125123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 816 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13125123 is about 3622.8611621203. The cubic root of 13125123 is about 235.8854358724.

Adding to 13125123 its reverse (32152131), we get a palindrome (45277254).

The spelling of 13125123 in words is "thirteen million, one hundred twenty-five thousand, one hundred twenty-three".