1331032103 has 4 divisors (see below), whose sum is σ = 1388903088. Its totient is φ = 1273161120.

The previous prime is 1331032097. The next prime is 1331032123. The reversal of 1331032103 is 3012301331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3012301331 = 13 ⋅231715487.

It is a cyclic number.

It is not a de Polignac number, because 1331032103 - 2⁶ = 1331032039 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 (1331032123) 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, 28935458 + ... + 28935503.

It is an arithmetic number, because the mean of its divisors is an integer number (347225772).

Almost surely, 2^1331032103 is an apocalyptic number.

1331032103 is a deficient number, since it is larger than the sum of its proper divisors (57870985).

1331032103 is an equidigital number, since it uses as much as digits as its factorization.

1331032103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57870984.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1331032103 is about 36483.3126648335. The cubic root of 1331032103 is about 1100.0088437306.

Adding to 1331032103 its reverse (3012301331), we get a palindrome (4343333434).

The spelling of 1331032103 in words is "one billion, three hundred thirty-one million, thirty-two thousand, one hundred three".