1131113442 has 8 divisors (see below), whose sum is σ = 2262226896. Its totient is φ = 377037812.

The previous prime is 1131113407. The next prime is 1131113483. The reversal of 1131113442 is 2443111311.

It is a sphenic number, since it is the product of 3 distinct primes.

1131113442 is an admirable number.

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, 94259448 + ... + 94259459.

It is an arithmetic number, because the mean of its divisors is an integer number (282778362).

Almost surely, 2^1131113442 is an apocalyptic number.

1131113442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1131113442 is a wasteful number, since it uses less digits than its factorization.

1131113442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188518912.

The product of its digits is 288, while the sum is 21.

The square root of 1131113442 is about 33632.0300011760. The cubic root of 1131113442 is about 1041.9224310229.

Adding to 1131113442 its reverse (2443111311), we get a palindrome (3574224753).

It can be divided in two parts, 11311 and 13442, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 1131113442 in words is "one billion, one hundred thirty-one million, one hundred thirteen thousand, four hundred forty-two".