1131115468 has 24 divisors (see below), whose sum is σ = 2395304352. Its totient is φ = 456248064.

The previous prime is 1131115441. The next prime is 1131115483. The reversal of 1131115468 is 8645111311.

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 7 ways as a sum of consecutive naturals, for example, 1187671 + ... + 1188622.

It is an arithmetic number, because the mean of its divisors is an integer number (99804348).

Almost surely, 2^1131115468 is an apocalyptic number.

It is an amenable number.

1131115468 is an abundant number, since it is smaller than the sum of its proper divisors (1264188884).

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

1131115468 is a wasteful number, since it uses less digits than its factorization.

1131115468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376321 (or 2376319 counting only the distinct ones).

The product of its digits is 2880, while the sum is 31.

The square root of 1131115468 is about 33632.0601212593. The cubic root of 1131115468 is about 1041.9230531042.

Adding to 1131115468 its reverse (8645111311), we get a palindrome (9776226779).

The spelling of 1131115468 in words is "one billion, one hundred thirty-one million, one hundred fifteen thousand, four hundred sixty-eight".