12103513 has 8 divisors (see below), whose sum is σ = 12791520. Its totient is φ = 11420640.

The previous prime is 12103501. The next prime is 12103517. The reversal of 12103513 is 31530121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12103513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4206 + ... + 6472.

It is an arithmetic number, because the mean of its divisors is an integer number (1598940).

Almost surely, 2^12103513 is an apocalyptic number.

It is an amenable number.

12103513 is a deficient number, since it is larger than the sum of its proper divisors (688007).

12103513 is a wasteful number, since it uses less digits than its factorization.

12103513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 12103513 is about 3479.0103477857. The cubic root of 12103513 is about 229.5992580619.

Adding to 12103513 its reverse (31530121), we get a palindrome (43633634).

The spelling of 12103513 in words is "twelve million, one hundred three thousand, five hundred thirteen".