1131141320 has 16 divisors (see below), whose sum is σ = 2545068060. Its totient is φ = 452456512.

The previous prime is 1131141301. The next prime is 1131141329. The reversal of 1131141320 is 231411311.

It can be written as a sum of positive squares in 2 ways, for example, as 1101045124 + 30096196 = 33182^2 + 5486^2 .

It is a super-2 number, since 2×1131141320² = 2558961371622684800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131141329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14139227 + ... + 14139306.

Almost surely, 2^1131141320 is an apocalyptic number.

1131141320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131141320 is an abundant number, since it is smaller than the sum of its proper divisors (1413926740).

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

1131141320 is a wasteful number, since it uses less digits than its factorization.

1131141320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28278544 (or 28278540 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1131141320 is about 33632.4444547226. Note that the first 4 decimals coincide. The cubic root of 1131141320 is about 1041.9309908702.

Adding to 1131141320 its reverse (231411311), we get a palindrome (1362552631).

The spelling of 1131141320 in words is "one billion, one hundred thirty-one million, one hundred forty-one thousand, three hundred twenty".