1123131130 has 16 divisors (see below), whose sum is σ = 2205421344. Its totient is φ = 408411280.

The previous prime is 1123131127. The next prime is 1123131131. The reversal of 1123131130 is 311313211.

It is a super-2 number, since 2×1123131130² = 2522847070350153800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 5105032 + ... + 5105251.

It is an arithmetic number, because the mean of its divisors is an integer number (137838834).

Almost surely, 2^1123131130 is an apocalyptic number.

1123131130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123131130 is a deficient number, since it is larger than the sum of its proper divisors (1082290214).

1123131130 is a wasteful number, since it uses less digits than its factorization.

1123131130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210301.

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

The square root of 1123131130 is about 33513.1486136412. The cubic root of 1123131130 is about 1039.4656802885.

Adding to 1123131130 its reverse (311313211), we get a palindrome (1434444341).

The spelling of 1123131130 in words is "one billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred thirty".