1112131566 has 128 divisors (see below), whose sum is σ = 3058191360. Its totient is φ = 291724416.

The previous prime is 1112131549. The next prime is 1112131589. The reversal of 1112131566 is 6651312111.

1112131566 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1112131566² = 2473673240187224712, which contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 1114980 + ... + 1115976.

It is an arithmetic number, because the mean of its divisors is an integer number (23892120).

Almost surely, 2^1112131566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112131566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529095680).

1112131566 is an abundant number, since it is smaller than the sum of its proper divisors (1946059794).

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

1112131566 is a wasteful number, since it uses less digits than its factorization.

1112131566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1249 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1112131566 is about 33348.6366437970. The cubic root of 1112131566 is about 1036.0611506915.

Adding to 1112131566 its reverse (6651312111), we get a palindrome (7763443677).

The spelling of 1112131566 in words is "one billion, one hundred twelve million, one hundred thirty-one thousand, five hundred sixty-six".