12920213 has 8 divisors (see below), whose sum is σ = 13284480. Its totient is φ = 12561120.

The previous prime is 12920203. The next prime is 12920239. The reversal of 12920213 is 31202921.

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 12920213 - 2⁸ = 12919957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4073 + ... + 6513.

It is an arithmetic number, because the mean of its divisors is an integer number (1660560).

Almost surely, 2^12920213 is an apocalyptic number.

It is an amenable number.

12920213 is a deficient number, since it is larger than the sum of its proper divisors (364267).

12920213 is an equidigital number, since it uses as much as digits as its factorization.

12920213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12920213 is about 3594.4697800927. The cubic root of 12920213 is about 234.6514404058.

The spelling of 12920213 in words is "twelve million, nine hundred twenty thousand, two hundred thirteen".