1121132144 has 40 divisors (see below), whose sum is σ = 2391446640. Its totient is φ = 504921600.

The previous prime is 1121132119. The next prime is 1121132189. The reversal of 1121132144 is 4412311211.

It is a congruent number.

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, 10037 + ... + 48404.

It is an arithmetic number, because the mean of its divisors is an integer number (59786166).

Almost surely, 2^1121132144 is an apocalyptic number.

It is an amenable number.

1121132144 is an abundant number, since it is smaller than the sum of its proper divisors (1270314496).

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

1121132144 is a wasteful number, since it uses less digits than its factorization.

1121132144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58569 (or 58563 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 1121132144 is about 33483.3114252459. The cubic root of 1121132144 is about 1038.8486222367.

Adding to 1121132144 its reverse (4412311211), we get a palindrome (5533443355).

The spelling of 1121132144 in words is "one billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred forty-four".