1213606306573 has 8 divisors (see below), whose sum is σ = 1285784736192. Its totient is φ = 1141515635136.

The previous prime is 1213606306559. The next prime is 1213606306609. The reversal of 1213606306573 is 3756036063121.

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 1213606306573 - 2¹⁷ = 1213606175501 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 (1213606306373) 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, 21911065 + ... + 21966382.

It is an arithmetic number, because the mean of its divisors is an integer number (160723092024).

Almost surely, 2^{1213606306573} is an apocalyptic number.

It is an amenable number.

1213606306573 is a deficient number, since it is larger than the sum of its proper divisors (72178429619).

1213606306573 is a wasteful number, since it uses less digits than its factorization.

1213606306573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43879091.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 1213606306573 in words is "one trillion, two hundred thirteen billion, six hundred six million, three hundred six thousand, five hundred seventy-three".