71201311 has 2 divisors, whose sum is σ = 71201312. Its totient is φ = 71201310.

The previous prime is 71201279. The next prime is 71201323. The reversal of 71201311 is 11310217.

It is a strong prime.

It is an emirp because it is prime and its reverse (11310217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71201311 - 2⁵ = 71201279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71201371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35600655 + 35600656.

It is an arithmetic number, because the mean of its divisors is an integer number (35600656).

Almost surely, 2^71201311 is an apocalyptic number.

71201311 is a deficient number, since it is larger than the sum of its proper divisors (1).

71201311 is an equidigital number, since it uses as much as digits as its factorization.

71201311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 71201311 is about 8438.0869277343. The cubic root of 71201311 is about 414.4727634654.

Adding to 71201311 its reverse (11310217), we get a palindrome (82511528).

The spelling of 71201311 in words is "seventy-one million, two hundred one thousand, three hundred eleven".