1131411312 has 60 divisors (see below), whose sum is σ = 3213667080. Its totient is φ = 371505024.

The previous prime is 1131411301. The next prime is 1131411409. The reversal of 1131411312 is 2131141311.

It is a happy number.

It is a super-2 number, since 2×1131411312² = 2560183113843122688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48987 + ... + 68282.

It is an arithmetic number, because the mean of its divisors is an integer number (53561118).

Almost surely, 2^1131411312 is an apocalyptic number.

1131411312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131411312 is an abundant number, since it is smaller than the sum of its proper divisors (2082255768).

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

1131411312 is a wasteful number, since it uses less digits than its factorization.

1131411312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117350 (or 117341 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1131411312 is about 33636.4580775087. The cubic root of 1131411312 is about 1042.0138837407.

Adding to 1131411312 its reverse (2131141311), we get a palindrome (3262552623).

The spelling of 1131411312 in words is "one billion, one hundred thirty-one million, four hundred eleven thousand, three hundred twelve".