12520303 has 8 divisors (see below), whose sum is σ = 13245408. Its totient is φ = 11810304.

The previous prime is 12520289. The next prime is 12520307. The reversal of 12520303 is 30302521.

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

It is a cyclic number.

It is not a de Polignac number, because 12520303 - 2⁵ = 12520271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520307) 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, 2050 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (1655676).

Almost surely, 2^12520303 is an apocalyptic number.

12520303 is a deficient number, since it is larger than the sum of its proper divisors (725105).

12520303 is an equidigital number, since it uses as much as digits as its factorization.

12520303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 12520303 is about 3538.4040187633. The cubic root of 12520303 is about 232.2050246170.

Adding to 12520303 its reverse (30302521), we get a palindrome (42822824).

The spelling of 12520303 in words is "twelve million, five hundred twenty thousand, three hundred three".