1303223413 has 4 divisors (see below), whose sum is σ = 1327812588. Its totient is φ = 1278634240.

The previous prime is 1303223393. The next prime is 1303223437. The reversal of 1303223413 is 3143223031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1074397284 + 228826129 = 32778^2 + 15127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303223413 - 2²⁹ = 766352501 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 (1303223113) 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, 12294508 + ... + 12294613.

It is an arithmetic number, because the mean of its divisors is an integer number (331953147).

Almost surely, 2^1303223413 is an apocalyptic number.

It is an amenable number.

1303223413 is a deficient number, since it is larger than the sum of its proper divisors (24589175).

1303223413 is an equidigital number, since it uses as much as digits as its factorization.

1303223413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24589174.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1303223413 is about 36100.1857751453. The cubic root of 1303223413 is about 1092.2941923724.

Adding to 1303223413 its reverse (3143223031), we get a palindrome (4446446444).

The spelling of 1303223413 in words is "one billion, three hundred three million, two hundred twenty-three thousand, four hundred thirteen".