1131132123 has 48 divisors (see below), whose sum is σ = 1867686912. Its totient is φ = 653400000.

The previous prime is 1131132113. The next prime is 1131132139. The reversal of 1131132123 is 3212311311.

1131132123 is a `hidden beast` number, since 11 + 311 + 321 + 23 = 666.

It is not a de Polignac number, because 1131132123 - 2⁹ = 1131131611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131132096 and 1131132105.

It is not an unprimeable number, because it can be changed into a prime (1131132113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202873 + ... + 208373.

It is an arithmetic number, because the mean of its divisors is an integer number (38910144).

Almost surely, 2^1131132123 is an apocalyptic number.

1131132123 is a deficient number, since it is larger than the sum of its proper divisors (736554789).

1131132123 is a wasteful number, since it uses less digits than its factorization.

1131132123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616 (or 5613 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1131132123 is about 33632.3077263515. The cubic root of 1131132123 is about 1041.9281669774.

Adding to 1131132123 its reverse (3212311311), we get a palindrome (4343443434).

It can be divided in two parts, 11311 and 32123, that added together give a palindrome (43434).

The spelling of 1131132123 in words is "one billion, one hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty-three".