1323103213 has 6 divisors (see below), whose sum is σ = 1331989454. Its totient is φ = 1314222936.

The previous prime is 1323103211. The next prime is 1323103231. The reversal of 1323103213 is 3123013231.

It can be written as a sum of positive squares in only one way, i.e., 1019716489 + 303386724 = 31933^2 + 17418^2 .

It is not a de Polignac number, because 1323103213 - 2¹ = 1323103211 is a prime.

It is a super-2 number, since 2×1323103213² = 3501204224501846738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323103211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454320 + ... + 457222.

Almost surely, 2^1323103213 is an apocalyptic number.

It is an amenable number.

1323103213 is a deficient number, since it is larger than the sum of its proper divisors (8886241).

1323103213 is an frugal number, since it uses more digits than its factorization.

1323103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1323103213 is about 36374.4857420693. The cubic root of 1323103213 is about 1097.8202601043.

Adding to 1323103213 its reverse (3123013231), we get a palindrome (4446116444).

The spelling of 1323103213 in words is "one billion, three hundred twenty-three million, one hundred three thousand, two hundred thirteen".