1113231331 has 16 divisors (see below), whose sum is σ = 1157884416. Its totient is φ = 1069570656.

The previous prime is 1113231277. The next prime is 1113231347. The reversal of 1113231331 is 1331323111.

It is a cyclic number.

It is not a de Polignac number, because 1113231331 - 2²⁷ = 979013603 is a prime.

It is a super-2 number, since 2×1113231331² = 2478567992640063122, 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 = 1113231299 and 1113231308.

It is not an unprimeable number, because it can be changed into a prime (1113231131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470205 + ... + 1470961.

It is an arithmetic number, because the mean of its divisors is an integer number (72367776).

Almost surely, 2^1113231331 is an apocalyptic number.

1113231331 is a deficient number, since it is larger than the sum of its proper divisors (44653085).

1113231331 is an equidigital number, since it uses as much as digits as its factorization.

1113231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its digits is 162, while the sum is 19.

The square root of 1113231331 is about 33365.1214743780. The cubic root of 1113231331 is about 1036.4025516695.

Adding to 1113231331 its reverse (1331323111), we get a palindrome (2444554442).

The spelling of 1113231331 in words is "one billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred thirty-one".