1303022213 has 4 divisors (see below), whose sum is σ = 1306959168. Its totient is φ = 1299085260.

The previous prime is 1303022209. The next prime is 1303022221. The reversal of 1303022213 is 3122203031.

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: 3122203031 = 15137 ⋅206263.

It is a cyclic number.

It is not a de Polignac number, because 1303022213 - 2² = 1303022209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303022191 and 1303022200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303022293) 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, 1967981 + ... + 1968642.

It is an arithmetic number, because the mean of its divisors is an integer number (326739792).

Almost surely, 2^1303022213 is an apocalyptic number.

It is an amenable number.

1303022213 is a deficient number, since it is larger than the sum of its proper divisors (3936955).

1303022213 is an equidigital number, since it uses as much as digits as its factorization.

1303022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936954.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1303022213 is about 36097.3989783198. The cubic root of 1303022213 is about 1092.2379776819.

Adding to 1303022213 its reverse (3122203031), we get a palindrome (4425225244).

The spelling of 1303022213 in words is "one billion, three hundred three million, twenty-two thousand, two hundred thirteen".