1123872348657 has 16 divisors (see below), whose sum is σ = 1596917606400. Its totient is φ = 701423875152.

The previous prime is 1123872348637. The next prime is 1123872348673. The reversal of 1123872348657 is 7568432783211.

It is a happy number.

It is not a de Polignac number, because 1123872348657 - 2¹² = 1123872344561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123872348597 and 1123872348606.

It is not an unprimeable number, because it can be changed into a prime (1123872348637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173273407 + ... + 173279892.

It is an arithmetic number, because the mean of its divisors is an integer number (99807350400).

Almost surely, 2^{1123872348657} is an apocalyptic number.

It is an amenable number.

1123872348657 is a deficient number, since it is larger than the sum of its proper divisors (473045257743).

1123872348657 is a wasteful number, since it uses less digits than its factorization.

1123872348657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346553372.

The product of its digits is 13547520, while the sum is 57.

The spelling of 1123872348657 in words is "one trillion, one hundred twenty-three billion, eight hundred seventy-two million, three hundred forty-eight thousand, six hundred fifty-seven".