12613046021 has 8 divisors (see below), whose sum is σ = 12718325760. Its totient is φ = 12507859728.

The previous prime is 12613045979. The next prime is 12613046027. The reversal of 12613046021 is 12064031621.

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-12613046021 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 (12613046027) 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, 262175 + ... + 306531.

It is an arithmetic number, because the mean of its divisors is an integer number (1589790720).

Almost surely, 2^12613046021 is an apocalyptic number.

It is an amenable number.

12613046021 is a deficient number, since it is larger than the sum of its proper divisors (105279739).

12613046021 is a wasteful number, since it uses less digits than its factorization.

12613046021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46723.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 12613046021 its reverse (12064031621), we get a palindrome (24677077642).

The spelling of 12613046021 in words is "twelve billion, six hundred thirteen million, forty-six thousand, twenty-one".