1121141111553 has 12 divisors (see below), whose sum is σ = 1619719124608. Its totient is φ = 747292142520.

The previous prime is 1121141111509. The next prime is 1121141111593. The reversal of 1121141111553 is 3551111411211.

It is not a de Polignac number, because 1121141111553 - 2⁸ = 1121141111297 is a prime.

It is a Duffinian number.

It is a Curzon 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11219593 + ... + 11319078.

Almost surely, 2^{1121141111553} is an apocalyptic number.

It is an amenable number.

1121141111553 is a deficient number, since it is larger than the sum of its proper divisors (498578013055).

1121141111553 is a wasteful number, since it uses less digits than its factorization.

1121141111553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22544204 (or 22544201 counting only the distinct ones).

The product of its digits is 600, while the sum is 27.

Adding to 1121141111553 its reverse (3551111411211), we get a palindrome (4672252522764).

The spelling of 1121141111553 in words is "one trillion, one hundred twenty-one billion, one hundred forty-one million, one hundred eleven thousand, five hundred fifty-three".