12513923 has 2 divisors, whose sum is σ = 12513924. Its totient is φ = 12513922.

The previous prime is 12513901. The next prime is 12513929. The reversal of 12513923 is 32931521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12513923 - 2⁶ = 12513859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12513892 and 12513901.

It is not a weakly prime, because it can be changed into another prime (12513929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256961 + 6256962.

It is an arithmetic number, because the mean of its divisors is an integer number (6256962).

Almost surely, 2^12513923 is an apocalyptic number.

12513923 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513923 is an equidigital number, since it uses as much as digits as its factorization.

12513923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 12513923 is about 3537.5023674904. The cubic root of 12513923 is about 232.1655761636.

The spelling of 12513923 in words is "twelve million, five hundred thirteen thousand, nine hundred twenty-three".