1123456507443 has 48 divisors (see below), whose sum is σ = 1691041453920. Its totient is φ = 717859602432.

The previous prime is 1123456507427. The next prime is 1123456507513. The reversal of 1123456507443 is 3447056543211.

1123456507443 is a `hidden beast` number, since 1 + 12 + 3 + 4 + 565 + 0 + 74 + 4 + 3 = 666.

It is not a de Polignac number, because 1123456507443 - 2⁴ = 1123456507427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123456507543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19624980 + ... + 19682142.

It is an arithmetic number, because the mean of its divisors is an integer number (35230030290).

Almost surely, 2^{1123456507443} is an apocalyptic number.

1123456507443 is a deficient number, since it is larger than the sum of its proper divisors (567584946477).

1123456507443 is a wasteful number, since it uses less digits than its factorization.

1123456507443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57748 (or 57745 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 1123456507443 in words is "one trillion, one hundred twenty-three billion, four hundred fifty-six million, five hundred seven thousand, four hundred forty-three".