1115304231 has 8 divisors (see below), whose sum is σ = 1488909184. Its totient is φ = 742617720.

The previous prime is 1115304173. The next prime is 1115304251. The reversal of 1115304231 is 1324035111.

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

It is not a de Polignac number, because 1115304231 - 2¹⁴ = 1115287847 is a prime.

It is a super-2 number, since 2×1115304231² = 2487807055373002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115304198 and 1115304207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115304251) 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, 226771 + ... + 231636.

It is an arithmetic number, because the mean of its divisors is an integer number (186113648).

Almost surely, 2^1115304231 is an apocalyptic number.

1115304231 is a deficient number, since it is larger than the sum of its proper divisors (373604953).

1115304231 is an equidigital number, since it uses as much as digits as its factorization.

1115304231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459221.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1115304231 is about 33396.1709032637. The cubic root of 1115304231 is about 1037.0454329563.

Adding to 1115304231 its reverse (1324035111), we get a palindrome (2439339342).

The spelling of 1115304231 in words is "one billion, one hundred fifteen million, three hundred four thousand, two hundred thirty-one".