1302232213 has 2 divisors, whose sum is σ = 1302232214. Its totient is φ = 1302232212.

The previous prime is 1302232189. The next prime is 1302232223. The reversal of 1302232213 is 3122322031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1301910724 + 321489 = 36082^2 + 567^2 .

It is an emirp because it is prime and its reverse (3122322031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1302232213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302232223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651116106 + 651116107.

It is an arithmetic number, because the mean of its divisors is an integer number (651116107).

Almost surely, 2^1302232213 is an apocalyptic number.

It is an amenable number.

1302232213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302232213 is an equidigital number, since it uses as much as digits as its factorization.

1302232213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1302232213 is about 36086.4547025612. The cubic root of 1302232213 is about 1092.0171980121.

Adding to 1302232213 its reverse (3122322031), we get a palindrome (4424554244).

The spelling of 1302232213 in words is "one billion, three hundred two million, two hundred thirty-two thousand, two hundred thirteen".