1303103213 has 4 divisors (see below), whose sum is σ = 1305011808. Its totient is φ = 1301194620.

The previous prime is 1303103173. The next prime is 1303103233. The reversal of 1303103213 is 3123013031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3123013031 = 149 ⋅20959819.

It is a cyclic number.

It is not a de Polignac number, because 1303103213 - 2¹⁰ = 1303102189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303103191 and 1303103200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303103233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953273 + ... + 954638.

It is an arithmetic number, because the mean of its divisors is an integer number (326252952).

Almost surely, 2^1303103213 is an apocalyptic number.

It is an amenable number.

1303103213 is a deficient number, since it is larger than the sum of its proper divisors (1908595).

1303103213 is an equidigital number, since it uses as much as digits as its factorization.

1303103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908594.

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

The square root of 1303103213 is about 36098.5209253786. The cubic root of 1303103213 is about 1092.2606095404.

Adding to 1303103213 its reverse (3123013031), we get a palindrome (4426116244).

The spelling of 1303103213 in words is "one billion, three hundred three million, one hundred three thousand, two hundred thirteen".