1131355315 has 4 divisors (see below), whose sum is σ = 1357626384. Its totient is φ = 905084248.

The previous prime is 1131355307. The next prime is 1131355391. The reversal of 1131355315 is 5135531311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131355315 - 2³ = 1131355307 is a prime.

It is a Duffinian 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, 113135527 + ... + 113135536.

It is an arithmetic number, because the mean of its divisors is an integer number (339406596).

Almost surely, 2^1131355315 is an apocalyptic number.

1131355315 is a deficient number, since it is larger than the sum of its proper divisors (226271069).

1131355315 is an equidigital number, since it uses as much as digits as its factorization.

1131355315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226271068.

The product of its digits is 3375, while the sum is 28.

The square root of 1131355315 is about 33635.6256817084. The cubic root of 1131355315 is about 1041.9966926409.

Adding to 1131355315 its reverse (5135531311), we get a palindrome (6266886626).

The spelling of 1131355315 in words is "one billion, one hundred thirty-one million, three hundred fifty-five thousand, three hundred fifteen".