1301543213 has 2 divisors, whose sum is σ = 1301543214. Its totient is φ = 1301543212.

The previous prime is 1301543179. The next prime is 1301543227. The reversal of 1301543213 is 3123451031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1300467844 + 1075369 = 36062^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301543213 - 2¹⁶ = 1301477677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301542213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650771606 + 650771607.

It is an arithmetic number, because the mean of its divisors is an integer number (650771607).

Almost surely, 2^1301543213 is an apocalyptic number.

It is an amenable number.

1301543213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301543213 is an equidigital number, since it uses as much as digits as its factorization.

1301543213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1301543213 is about 36076.9069211871. The cubic root of 1301543213 is about 1091.8245716953.

Adding to 1301543213 its reverse (3123451031), we get a palindrome (4424994244).

The spelling of 1301543213 in words is "one billion, three hundred one million, five hundred forty-three thousand, two hundred thirteen".