1331443113 has 128 divisors (see below), whose sum is σ = 2559320064. Its totient is φ = 593049600.

The previous prime is 1331443097. The next prime is 1331443129. The reversal of 1331443113 is 3113441331.

It is an interprime number because it is at equal distance from previous prime (1331443097) and next prime (1331443129).

It is not a de Polignac number, because 1331443113 - 2⁴ = 1331443097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331443133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2555293 + ... + 2555813.

It is an arithmetic number, because the mean of its divisors is an integer number (19994688).

Almost surely, 2^1331443113 is an apocalyptic number.

1331443113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1331443113 is a deficient number, since it is larger than the sum of its proper divisors (1227876951).

1331443113 is a wasteful number, since it uses less digits than its factorization.

1331443113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its digits is 1296, while the sum is 24.

The square root of 1331443113 is about 36488.9450792976. The cubic root of 1331443113 is about 1100.1220561531.

Adding to 1331443113 its reverse (3113441331), we get a palindrome (4444884444).

It can be divided in two parts, 1331 and 443113, that added together give a palindrome (444444).

The spelling of 1331443113 in words is "one billion, three hundred thirty-one million, four hundred forty-three thousand, one hundred thirteen".