1123142773866 has 16 divisors (see below), whose sum is σ = 2267278871904. Its totient is φ = 370882037264.

The previous prime is 1123142773853. The next prime is 1123142773873. The reversal of 1123142773866 is 6683772413211.

It is a super-2 number, since 2×1123142773866² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874721145 + ... + 874722428.

It is an arithmetic number, because the mean of its divisors is an integer number (141704929494).

Almost surely, 2^{1123142773866} is an apocalyptic number.

1123142773866 is an abundant number, since it is smaller than the sum of its proper divisors (1144136098038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123142773866 is a wasteful number, since it uses less digits than its factorization.

1123142773866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749443685.

The product of its digits is 2032128, while the sum is 51.

The spelling of 1123142773866 in words is "one trillion, one hundred twenty-three billion, one hundred forty-two million, seven hundred seventy-three thousand, eight hundred sixty-six".