1123542233747 has 4 divisors (see below), whose sum is σ = 1123615745616. Its totient is φ = 1123468721880.

The previous prime is 1123542233741. The next prime is 1123542233773. The reversal of 1123542233747 is 7473322453211.

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 1123542233747 - 2⁴ = 1123542233731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123542233698 and 1123542233707.

It is not an unprimeable number, because it can be changed into a prime (1123542233741) 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, 36733004 + ... + 36763577.

It is an arithmetic number, because the mean of its divisors is an integer number (280903936404).

Almost surely, 2^{1123542233747} is an apocalyptic number.

1123542233747 is a deficient number, since it is larger than the sum of its proper divisors (73511869).

1123542233747 is an equidigital number, since it uses as much as digits as its factorization.

1123542233747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73511868.

The product of its digits is 846720, while the sum is 44.

Adding to 1123542233747 its reverse (7473322453211), we get a palindrome (8596864686958).

The spelling of 1123542233747 in words is "one trillion, one hundred twenty-three billion, five hundred forty-two million, two hundred thirty-three thousand, seven hundred forty-seven".