13143123 has 18 divisors (see below), whose sum is σ = 22084764. Its totient is φ = 7510104.

The previous prime is 13143089. The next prime is 13143149. The reversal of 13143123 is 32134131.

It is not a de Polignac number, because 13143123 - 2⁶ = 13143059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13143096 and 13143105.

It is not an unprimeable number, because it can be changed into a prime (13143173) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14461 + ... + 15342.

Almost surely, 2^13143123 is an apocalyptic number.

13143123 is a deficient number, since it is larger than the sum of its proper divisors (8941641).

13143123 is a wasteful number, since it uses less digits than its factorization.

13143123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29823 (or 29813 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13143123 is about 3625.3445353511. The cubic root of 13143123 is about 235.9932189472.

Adding to 13143123 its reverse (32134131), we get a palindrome (45277254).

The spelling of 13143123 in words is "thirteen million, one hundred forty-three thousand, one hundred twenty-three".