1123611888 has 80 divisors (see below), whose sum is σ = 3398282496. Its totient is φ = 313198080.

The previous prime is 1123611883. The next prime is 1123611899. The reversal of 1123611888 is 8881163211.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123611883) 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, 27006 + ... + 54557.

Almost surely, 2^1123611888 is an apocalyptic number.

It is an amenable number.

1123611888 is an abundant number, since it is smaller than the sum of its proper divisors (2274670608).

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

1123611888 is a wasteful number, since it uses less digits than its factorization.

1123611888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81622 (or 81616 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 1123611888 is about 33520.3205235272. The cubic root of 1123611888 is about 1039.6139740901.

The spelling of 1123611888 in words is "one billion, one hundred twenty-three million, six hundred eleven thousand, eight hundred eighty-eight".