1123205443005 has 32 divisors (see below), whose sum is σ = 1847981952000. Its totient is φ = 582131860992.

The previous prime is 1123205442991. The next prime is 1123205443007. The reversal of 1123205443005 is 5003445023211.

It is not a de Polignac number, because 1123205443005 - 2²⁶ = 1123138334141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123205443007) 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 31 ways as a sum of consecutive naturals, for example, 801805 + ... + 1699794.

It is an arithmetic number, because the mean of its divisors is an integer number (57749436000).

Almost surely, 2^{1123205443005} is an apocalyptic number.

1123205443005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123205443005 is a deficient number, since it is larger than the sum of its proper divisors (724776508995).

1123205443005 is a wasteful number, since it uses less digits than its factorization.

1123205443005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502453.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 1123205443005 in words is "one trillion, one hundred twenty-three billion, two hundred five million, four hundred forty-three thousand, five".