1111855316143 has 16 divisors (see below), whose sum is σ = 1309093976736. Its totient is φ = 930983754240.

The previous prime is 1111855316119. The next prime is 1111855316161. The reversal of 1111855316143 is 3416135581111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1111855316143 - 2¹⁷ = 1111855185071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111855316096 and 1111855316105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111855316443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8441446 + ... + 8572147.

It is an arithmetic number, because the mean of its divisors is an integer number (81818373546).

Almost surely, 2^{1111855316143} is an apocalyptic number.

1111855316143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1111855316143 is a deficient number, since it is larger than the sum of its proper divisors (197238660593).

1111855316143 is a wasteful number, since it uses less digits than its factorization.

1111855316143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17014074.

The product of its digits is 43200, while the sum is 40.

The spelling of 1111855316143 in words is "one trillion, one hundred eleven billion, eight hundred fifty-five million, three hundred sixteen thousand, one hundred forty-three".