1302112213 has 2 divisors, whose sum is σ = 1302112214. Its totient is φ = 1302112212.

The previous prime is 1302112187. The next prime is 1302112219. The reversal of 1302112213 is 3122112031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291827364 + 10284849 = 35942^2 + 3207^2 .

It is an emirp because it is prime and its reverse (3122112031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1302112213 - 2⁵ = 1302112181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302112219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651056106 + 651056107.

It is an arithmetic number, because the mean of its divisors is an integer number (651056107).

Almost surely, 2^1302112213 is an apocalyptic number.

It is an amenable number.

1302112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302112213 is an equidigital number, since it uses as much as digits as its factorization.

1302112213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1302112213 is about 36084.7919905325. The cubic root of 1302112213 is about 1091.9836540487.

Adding to 1302112213 its reverse (3122112031), we get a palindrome (4424224244).

The spelling of 1302112213 in words is "one billion, three hundred two million, one hundred twelve thousand, two hundred thirteen".