1123542036 has 48 divisors (see below), whose sum is σ = 3084238080. Its totient is φ = 352483200.

The previous prime is 1123542001. The next prime is 1123542059. The reversal of 1123542036 is 6302453211.

1123542036 is a `hidden beast` number, since 1 + 1 + 235 + 420 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304140 + ... + 307811.

It is an arithmetic number, because the mean of its divisors is an integer number (64254960).

Almost surely, 2^1123542036 is an apocalyptic number.

It is an amenable number.

1123542036 is an abundant number, since it is smaller than the sum of its proper divisors (1960696044).

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

1123542036 is a wasteful number, since it uses less digits than its factorization.

1123542036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611981 (or 611973 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1123542036 is about 33519.2785721889. The cubic root of 1123542036 is about 1039.5924302869.

Adding to 1123542036 its reverse (6302453211), we get a palindrome (7425995247).

The spelling of 1123542036 in words is "one billion, one hundred twenty-three million, five hundred forty-two thousand, thirty-six".