1001113331 has 2 divisors, whose sum is σ = 1001113332. Its totient is φ = 1001113330.

The previous prime is 1001113319. The next prime is 1001113369. The reversal of 1001113331 is 1333111001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001113331 is a prime.

It is a super-2 number, since 2×1001113331² = 2004455803011831122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1001113931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500556665 + 500556666.

It is an arithmetic number, because the mean of its divisors is an integer number (500556666).

Almost surely, 2^1001113331 is an apocalyptic number.

1001113331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001113331 is an equidigital number, since it uses as much as digits as its factorization.

1001113331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1001113331 is about 31640.3750135804. The cubic root of 1001113331 is about 1000.3709726956.

Adding to 1001113331 its reverse (1333111001), we get a palindrome (2334224332).

The spelling of 1001113331 in words is "one billion, one million, one hundred thirteen thousand, three hundred thirty-one".