1304326213 has 2 divisors, whose sum is σ = 1304326214. Its totient is φ = 1304326212.

The previous prime is 1304326211. The next prime is 1304326223. The reversal of 1304326213 is 3126234031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1262878369 + 41447844 = 35537^2 + 6438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304326213 - 2¹ = 1304326211 is a prime.

Together with 1304326211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304326211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652163106 + 652163107.

It is an arithmetic number, because the mean of its divisors is an integer number (652163107).

Almost surely, 2^1304326213 is an apocalyptic number.

It is an amenable number.

1304326213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304326213 is an equidigital number, since it uses as much as digits as its factorization.

1304326213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1304326213 is about 36115.4567048515. The cubic root of 1304326213 is about 1092.6022087383.

The spelling of 1304326213 in words is "one billion, three hundred four million, three hundred twenty-six thousand, two hundred thirteen".