1303213 has 2 divisors, whose sum is σ = 1303214. Its totient is φ = 1303212.

The previous prime is 1303199. The next prime is 1303219. The reversal of 1303213 is 3123031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1004004 + 299209 = 1002^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303213 - 2⁹ = 1302701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303193 and 1303202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651606 + 651607.

It is an arithmetic number, because the mean of its divisors is an integer number (651607).

2^1303213 is an apocalyptic number.

It is an amenable number.

1303213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303213 is an equidigital number, since it uses as much as digits as its factorization.

1303213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1303213 is about 1141.5835492858. The cubic root of 1303213 is about 109.2291283153.

Adding to 1303213 its reverse (3123031), we get a palindrome (4426244).

The spelling of 1303213 in words is "one million, three hundred three thousand, two hundred thirteen".