1113011231 has 4 divisors (see below), whose sum is σ = 1117342272. Its totient is φ = 1108680192.

The previous prime is 1113011167. The next prime is 1113011257. The reversal of 1113011231 is 1321103111.

It is a happy number.

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 1113011231 - 2⁶ = 1113011167 is a prime.

It is a super-2 number, since 2×1113011231² = 2477588000664270722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113011261) 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, 2165135 + ... + 2165648.

It is an arithmetic number, because the mean of its divisors is an integer number (279335568).

Almost surely, 2^1113011231 is an apocalyptic number.

1113011231 is a deficient number, since it is larger than the sum of its proper divisors (4331041).

1113011231 is an equidigital number, since it uses as much as digits as its factorization.

1113011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331040.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1113011231 is about 33361.8229567870. The cubic root of 1113011231 is about 1036.3342438433.

Adding to 1113011231 its reverse (1321103111), we get a palindrome (2434114342).

The spelling of 1113011231 in words is "one billion, one hundred thirteen million, eleven thousand, two hundred thirty-one".