1123135340 has 12 divisors (see below), whose sum is σ = 2358584256. Its totient is φ = 449254128.

The previous prime is 1123135339. The next prime is 1123135367. The reversal of 1123135340 is 435313211.

It is a super-2 number, since 2×1123135340² = 2522865983913831200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28078364 + ... + 28078403.

It is an arithmetic number, because the mean of its divisors is an integer number (196548688).

Almost surely, 2^1123135340 is an apocalyptic number.

1123135340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123135340 is an abundant number, since it is smaller than the sum of its proper divisors (1235448916).

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

1123135340 is a wasteful number, since it uses less digits than its factorization.

1123135340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56156776 (or 56156774 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1123135340 is about 33513.2114247501. The cubic root of 1123135340 is about 1039.4669790817.

Adding to 1123135340 its reverse (435313211), we get a palindrome (1558448551).

The spelling of 1123135340 in words is "one billion, one hundred twenty-three million, one hundred thirty-five thousand, three hundred forty".