1111116368421 has 12 divisors (see below), whose sum is σ = 1605611573280. Its totient is φ = 740436995880.

The previous prime is 1111116368419. The next prime is 1111116368423. The reversal of 1111116368421 is 1248636111111.

1111116368421 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 11 + 636 + 8 + 4 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1111116368419) and next prime (1111116368423).

It is not a de Polignac number, because 1111116368421 - 2¹ = 1111116368419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111116368423) 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 11 ways as a sum of consecutive naturals, for example, 25581241 + ... + 25624638.

It is an arithmetic number, because the mean of its divisors is an integer number (133800964440).

Almost surely, 2^{1111116368421} is an apocalyptic number.

It is an amenable number.

1111116368421 is a deficient number, since it is larger than the sum of its proper divisors (494495204859).

1111116368421 is a wasteful number, since it uses less digits than its factorization.

1111116368421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51208296 (or 51208293 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The spelling of 1111116368421 in words is "one trillion, one hundred eleven billion, one hundred sixteen million, three hundred sixty-eight thousand, four hundred twenty-one".