1331113043 has 16 divisors (see below), whose sum is σ = 1444788576. Its totient is φ = 1219088640.

The previous prime is 1331113019. The next prime is 1331113051. The reversal of 1331113043 is 3403111331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331113043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331110043) 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 15 ways as a sum of consecutive naturals, for example, 1748783 + ... + 1749543.

It is an arithmetic number, because the mean of its divisors is an integer number (90299286).

Almost surely, 2^1331113043 is an apocalyptic number.

1331113043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1331113043 is a deficient number, since it is larger than the sum of its proper divisors (113675533).

1331113043 is a wasteful number, since it uses less digits than its factorization.

1331113043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1331113043 is about 36484.4219222396. The cubic root of 1331113043 is about 1100.0311404407.

Adding to 1331113043 its reverse (3403111331), we get a palindrome (4734224374).

The spelling of 1331113043 in words is "one billion, three hundred thirty-one million, one hundred thirteen thousand, forty-three".