1123352820558 has 24 divisors (see below), whose sum is σ = 2434264948128. Its totient is φ = 374399580672.

The previous prime is 1123352820533. The next prime is 1123352820589. The reversal of 1123352820558 is 8550282533211.

1123352820558 is a `hidden beast` number, since 1 + 1 + 23 + 3 + 52 + 8 + 20 + 558 = 666.

It is a super-3 number, since 3×1123352820558³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4144966 + ... + 4407657.

It is an arithmetic number, because the mean of its divisors is an integer number (101427706172).

Almost surely, 2^{1123352820558} is an apocalyptic number.

1123352820558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1123352820558 is an abundant number, since it is smaller than the sum of its proper divisors (1310912127570).

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

1123352820558 is a wasteful number, since it uses less digits than its factorization.

1123352820558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8559928 (or 8559925 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 1123352820558 in words is "one trillion, one hundred twenty-three billion, three hundred fifty-two million, eight hundred twenty thousand, five hundred fifty-eight".