1331512103 has 4 divisors (see below), whose sum is σ = 1331587200. Its totient is φ = 1331437008.

The previous prime is 1331512073. The next prime is 1331512123. The reversal of 1331512103 is 3012151331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1331512103 - 2⁸ = 1331511847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331512123) 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 3 ways as a sum of consecutive naturals, for example, 5498 + ... + 51896.

It is an arithmetic number, because the mean of its divisors is an integer number (332896800).

Almost surely, 2^1331512103 is an apocalyptic number.

1331512103 is a deficient number, since it is larger than the sum of its proper divisors (75097).

1331512103 is an equidigital number, since it uses as much as digits as its factorization.

1331512103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75096.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1331512103 is about 36489.8904218689. The cubic root of 1331512103 is about 1100.1410571176.

Adding to 1331512103 its reverse (3012151331), we get a palindrome (4343663434).

The spelling of 1331512103 in words is "one billion, three hundred thirty-one million, five hundred twelve thousand, one hundred three".