1121104525543 has 4 divisors (see below), whose sum is σ = 1122646623280. Its totient is φ = 1119562427808.

The previous prime is 1121104525501. The next prime is 1121104525553. The reversal of 1121104525543 is 3455254011211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121104525543 - 2⁹ = 1121104525031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121104525499 and 1121104525508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121104525553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771047778 + ... + 771049231.

It is an arithmetic number, because the mean of its divisors is an integer number (280661655820).

Almost surely, 2^{1121104525543} is an apocalyptic number.

1121104525543 is a deficient number, since it is larger than the sum of its proper divisors (1542097737).

1121104525543 is an equidigital number, since it uses as much as digits as its factorization.

1121104525543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542097736.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 1121104525543 its reverse (3455254011211), we get a palindrome (4576358536754).

The spelling of 1121104525543 in words is "one trillion, one hundred twenty-one billion, one hundred four million, five hundred twenty-five thousand, five hundred forty-three".