1213365365213 has 8 divisors (see below), whose sum is σ = 1241968771296. Its totient is φ = 1184779486800.

The previous prime is 1213365365081. The next prime is 1213365365221. The reversal of 1213365365213 is 3125635633121.

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 1213365365213 - 2¹⁴ = 1213365348829 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 (1213365365243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4241783 + ... + 4518788.

It is an arithmetic number, because the mean of its divisors is an integer number (155246096412).

Almost surely, 2^{1213365365213} is an apocalyptic number.

It is an amenable number.

1213365365213 is a deficient number, since it is larger than the sum of its proper divisors (28603406083).

1213365365213 is an equidigital number, since it uses as much as digits as its factorization.

1213365365213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763835.

The product of its digits is 291600, while the sum is 41.

The spelling of 1213365365213 in words is "one trillion, two hundred thirteen billion, three hundred sixty-five million, three hundred sixty-five thousand, two hundred thirteen".