1113231001 has 4 divisors (see below), whose sum is σ = 1120702500. Its totient is φ = 1105759504.

The previous prime is 1113230983. The next prime is 1113231011. The reversal of 1113231001 is 1001323111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 282408025 + 830822976 = 16805^2 + 28824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113231001 - 2⁵ = 1113230969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113231011) 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, 3735526 + ... + 3735823.

It is an arithmetic number, because the mean of its divisors is an integer number (280175625).

Almost surely, 2^1113231001 is an apocalyptic number.

It is an amenable number.

1113231001 is a deficient number, since it is larger than the sum of its proper divisors (7471499).

1113231001 is an equidigital number, since it uses as much as digits as its factorization.

1113231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7471498.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1113231001 is about 33365.1165290937. The cubic root of 1113231001 is about 1036.4024492611.

Adding to 1113231001 its reverse (1001323111), we get a palindrome (2114554112).

The spelling of 1113231001 in words is "one billion, one hundred thirteen million, two hundred thirty-one thousand, one".