1144113331 has 4 divisors (see below), whose sum is σ = 1147792464. Its totient is φ = 1140434200.

The previous prime is 1144113263. The next prime is 1144113349. The reversal of 1144113331 is 1333114411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333114411 = 1171 ⋅1138441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144113331 is a prime.

It is a super-2 number, since 2×1144113331² = 2617990628343831122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144143331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839100 + ... + 1839721.

It is an arithmetic number, because the mean of its divisors is an integer number (286948116).

Almost surely, 2^1144113331 is an apocalyptic number.

1144113331 is a deficient number, since it is larger than the sum of its proper divisors (3679133).

1144113331 is an equidigital number, since it uses as much as digits as its factorization.

1144113331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679132.

The product of its digits is 432, while the sum is 22.

The square root of 1144113331 is about 33824.7443597139. The cubic root of 1144113331 is about 1045.8988415883.

Adding to 1144113331 its reverse (1333114411), we get a palindrome (2477227742).

The spelling of 1144113331 in words is "one billion, one hundred forty-four million, one hundred thirteen thousand, three hundred thirty-one".