1216603268423 has 8 divisors (see below), whose sum is σ = 1220853295200. Its totient is φ = 1212360216480.

The previous prime is 1216603268393. The next prime is 1216603268477. The reversal of 1216603268423 is 3248623066121.

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 1216603268423 - 2⁶ = 1216603268359 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 (1216603268123) 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, 1394123 + ... + 2092076.

It is an arithmetic number, because the mean of its divisors is an integer number (152606661900).

Almost surely, 2^{1216603268423} is an apocalyptic number.

1216603268423 is a deficient number, since it is larger than the sum of its proper divisors (4250026777).

1216603268423 is an equidigital number, since it uses as much as digits as its factorization.

1216603268423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487417.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 1216603268423 in words is "one trillion, two hundred sixteen billion, six hundred three million, two hundred sixty-eight thousand, four hundred twenty-three".