12920303 has 8 divisors (see below), whose sum is σ = 14241360. Its totient is φ = 11623680.

The previous prime is 12920291. The next prime is 12920309. The reversal of 12920303 is 30302921.

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 12920303 - 2⁶ = 12920239 is a prime.

It is a super-2 number, since 2×12920303² = 333868459223618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920309) 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, 4988 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (1780170).

Almost surely, 2^12920303 is an apocalyptic number.

12920303 is a deficient number, since it is larger than the sum of its proper divisors (1321057).

12920303 is a wasteful number, since it uses less digits than its factorization.

12920303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12217.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 12920303 is about 3594.4822993026. The cubic root of 12920303 is about 234.6519852518.

The spelling of 12920303 in words is "twelve million, nine hundred twenty thousand, three hundred three".