1123725056045 has 8 divisors (see below), whose sum is σ = 1427791836024. Its totient is φ = 846098865664.

The previous prime is 1123725056039. The next prime is 1123725056063. The reversal of 1123725056045 is 5406505273211.

It can be written as a sum of positive squares in 4 ways, for example, as 414616224649 + 709108831396 = 643907^2 + 842086^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123725056045 - 2³⁰ = 1122651314221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123725055993 and 1123725056011.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6610147304 + ... + 6610147473.

It is an arithmetic number, because the mean of its divisors is an integer number (178473979503).

Almost surely, 2^{1123725056045} is an apocalyptic number.

It is an amenable number.

1123725056045 is a deficient number, since it is larger than the sum of its proper divisors (304066779979).

1123725056045 is a wasteful number, since it uses less digits than its factorization.

1123725056045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13220294799.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 1123725056045 in words is "one trillion, one hundred twenty-three billion, seven hundred twenty-five million, fifty-six thousand, forty-five".