1113065231 has 8 divisors (see below), whose sum is σ = 1131856128. Its totient is φ = 1094292000.

The previous prime is 1113065227. The next prime is 1113065251. The reversal of 1113065231 is 1325603111.

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 1113065231 - 2² = 1113065227 is a prime.

It is a super-2 number, since 2×1113065231² = 2477828416922166722, 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 = 1113065197 and 1113065206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113065251) 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, 204161 + ... + 209541.

It is an arithmetic number, because the mean of its divisors is an integer number (141482016).

Almost surely, 2^1113065231 is an apocalyptic number.

1113065231 is a deficient number, since it is larger than the sum of its proper divisors (18790897).

1113065231 is an equidigital number, since it uses as much as digits as its factorization.

1113065231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1113065231 is about 33362.6322552643. The cubic root of 1113065231 is about 1036.3510035257.

Adding to 1113065231 its reverse (1325603111), we get a palindrome (2438668342).

The spelling of 1113065231 in words is "one billion, one hundred thirteen million, sixty-five thousand, two hundred thirty-one".