1131441312 has 24 divisors (see below), whose sum is σ = 2970033696. Its totient is φ = 377147072.

The previous prime is 1131441287. The next prime is 1131441331. The reversal of 1131441312 is 2131441311.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5892828 + ... + 5893019.

It is an arithmetic number, because the mean of its divisors is an integer number (123751404).

Almost surely, 2^1131441312 is an apocalyptic number.

1131441312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131441312 is an abundant number, since it is smaller than the sum of its proper divisors (1838592384).

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

1131441312 is a wasteful number, since it uses less digits than its factorization.

1131441312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11785860 (or 11785852 counting only the distinct ones).

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

The square root of 1131441312 is about 33636.9040192465. The cubic root of 1131441312 is about 1042.0230935184.

Adding to 1131441312 its reverse (2131441311), we get a palindrome (3262882623).

Subtracting 1131441312 from its reverse (2131441311), we obtain a palindrome (999999999).

The spelling of 1131441312 in words is "one billion, one hundred thirty-one million, four hundred forty-one thousand, three hundred twelve".