1331112015 has 16 divisors (see below), whose sum is σ = 2366421600. Its totient is φ = 709926336.

The previous prime is 1331111989. The next prime is 1331112017. The reversal of 1331112015 is 5102111331.

It is not a de Polignac number, because 1331112015 - 2²⁶ = 1264003151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331112017) 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, 4929910 + ... + 4930179.

It is an arithmetic number, because the mean of its divisors is an integer number (147901350).

Almost surely, 2^1331112015 is an apocalyptic number.

1331112015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1331112015 is a deficient number, since it is larger than the sum of its proper divisors (1035309585).

1331112015 is an equidigital number, since it uses as much as digits as its factorization.

1331112015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9860103 (or 9860097 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1331112015 is about 36484.4078340323. The cubic root of 1331112015 is about 1100.0308572611.

Adding to 1331112015 its reverse (5102111331), we get a palindrome (6433223346).

The spelling of 1331112015 in words is "one billion, three hundred thirty-one million, one hundred twelve thousand, fifteen".