1121141111563 has 4 divisors (see below), whose sum is σ = 1223063030808. Its totient is φ = 1019219192320.

The previous prime is 1121141111509. The next prime is 1121141111593. The reversal of 1121141111563 is 3651111411211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121141111563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121141111593) 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 3 ways as a sum of consecutive naturals, for example, 50960959606 + ... + 50960959627.

It is an arithmetic number, because the mean of its divisors is an integer number (305765757702).

Almost surely, 2^{1121141111563} is an apocalyptic number.

1121141111563 is a deficient number, since it is larger than the sum of its proper divisors (101921919245).

1121141111563 is a wasteful number, since it uses less digits than its factorization.

1121141111563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101921919244.

The product of its digits is 720, while the sum is 28.

Adding to 1121141111563 its reverse (3651111411211), we get a palindrome (4772252522774).

The spelling of 1121141111563 in words is "one trillion, one hundred twenty-one billion, one hundred forty-one million, one hundred eleven thousand, five hundred sixty-three".