1123734683887 has 16 divisors (see below), whose sum is σ = 1145679275520. Its totient is φ = 1101944555712.

The previous prime is 1123734683873. The next prime is 1123734683909. The reversal of 1123734683887 is 7883864373211.

It is a cyclic number.

It is not a de Polignac number, because 1123734683887 - 2³⁹ = 573978869999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123734684887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104635164 + ... + 104645902.

It is an arithmetic number, because the mean of its divisors is an integer number (71604954720).

Almost surely, 2^{1123734683887} is an apocalyptic number.

1123734683887 is a deficient number, since it is larger than the sum of its proper divisors (21944591633).

1123734683887 is a wasteful number, since it uses less digits than its factorization.

1123734683887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17742.

The product of its digits is 32514048, while the sum is 61.

The spelling of 1123734683887 in words is "one trillion, one hundred twenty-three billion, seven hundred thirty-four million, six hundred eighty-three thousand, eight hundred eighty-seven".