1123130131 has 4 divisors (see below), whose sum is σ = 1127790664. Its totient is φ = 1118469600.

The previous prime is 1123130119. The next prime is 1123130149. The reversal of 1123130131 is 1310313211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123130131 - 2⁹ = 1123129619 is a prime.

It is a super-2 number, since 2×1123130131² = 2522842582320154322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123131131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329905 + ... + 2330386.

It is an arithmetic number, because the mean of its divisors is an integer number (281947666).

Almost surely, 2^1123130131 is an apocalyptic number.

1123130131 is a deficient number, since it is larger than the sum of its proper divisors (4660533).

1123130131 is an equidigital number, since it uses as much as digits as its factorization.

1123130131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660532.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1123130131 is about 33513.1337090401. The cubic root of 1123130131 is about 1039.4653720946.

Adding to 1123130131 its reverse (1310313211), we get a palindrome (2433443342).

The spelling of 1123130131 in words is "one billion, one hundred twenty-three million, one hundred thirty thousand, one hundred thirty-one".