1115322131 has 8 divisors (see below), whose sum is σ = 1390531584. Its totient is φ = 869082120.

The previous prime is 1115322113. The next prime is 1115322137. The reversal of 1115322131 is 1312235111.

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

It is a cyclic number.

It is not a de Polignac number, because 1115322131 - 2¹⁴ = 1115305747 is a prime.

It is a super-2 number, since 2×1115322131² = 2487886911796762322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115322137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7242275 + ... + 7242428.

It is an arithmetic number, because the mean of its divisors is an integer number (173816448).

Almost surely, 2^1115322131 is an apocalyptic number.

1115322131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1115322131 is a deficient number, since it is larger than the sum of its proper divisors (275209453).

1115322131 is a wasteful number, since it uses less digits than its factorization.

1115322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14484721.

The product of its digits is 180, while the sum is 20.

The square root of 1115322131 is about 33396.4388969842. The cubic root of 1115322131 is about 1037.0509809235.

Adding to 1115322131 its reverse (1312235111), we get a palindrome (2427557242).

The spelling of 1115322131 in words is "one billion, one hundred fifteen million, three hundred twenty-two thousand, one hundred thirty-one".