1331002103 has 4 divisors (see below), whose sum is σ = 1331085528. Its totient is φ = 1330918680.

The previous prime is 1331002093. The next prime is 1331002109. The reversal of 1331002103 is 3012001331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3012001331 = 61 ⋅49377071.

It is a cyclic number.

It is not a de Polignac number, because 1331002103 - 2⁶ = 1331002039 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 (1331002109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9476 + ... + 52457.

It is an arithmetic number, because the mean of its divisors is an integer number (332771382).

Almost surely, 2^1331002103 is an apocalyptic number.

1331002103 is a deficient number, since it is larger than the sum of its proper divisors (83425).

1331002103 is an equidigital number, since it uses as much as digits as its factorization.

1331002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83424.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1331002103 is about 36482.9015156415. The cubic root of 1331002103 is about 1100.0005793385. Note that the first 3 decimals are identical.

Adding to 1331002103 its reverse (3012001331), we get a palindrome (4343003434).

The spelling of 1331002103 in words is "one billion, three hundred thirty-one million, two thousand, one hundred three".