1213381068355 has 16 divisors (see below), whose sum is σ = 1509533625600. Its totient is φ = 935199180160.

The previous prime is 1213381068353. The next prime is 1213381068457. The reversal of 1213381068355 is 5538601833121.

It is not a de Polignac number, because 1213381068355 - 2¹ = 1213381068353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213381068353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9009235 + ... + 9142924.

It is an arithmetic number, because the mean of its divisors is an integer number (94345851600).

Almost surely, 2^{1213381068355} is an apocalyptic number.

1213381068355 is a deficient number, since it is larger than the sum of its proper divisors (296152557245).

1213381068355 is a wasteful number, since it uses less digits than its factorization.

1213381068355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18152654.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 1213381068355 in words is "one trillion, two hundred thirteen billion, three hundred eighty-one million, sixty-eight thousand, three hundred fifty-five".