71206130213 has 2 divisors, whose sum is σ = 71206130214. Its totient is φ = 71206130212.

The previous prime is 71206130183. The next prime is 71206130227. The reversal of 71206130213 is 31203160217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40153346689 + 31052783524 = 200383^2 + 176218^2 .

It is a cyclic number.

It is not a de Polignac number, because 71206130213 - 2²⁰ = 71205081637 is a prime.

It is a super-2 number, since 2×71206130213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71206130243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35603065106 + 35603065107.

It is an arithmetic number, because the mean of its divisors is an integer number (35603065107).

Almost surely, 2^71206130213 is an apocalyptic number.

It is an amenable number.

71206130213 is a deficient number, since it is larger than the sum of its proper divisors (1).

71206130213 is an equidigital number, since it uses as much as digits as its factorization.

71206130213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The spelling of 71206130213 in words is "seventy-one billion, two hundred six million, one hundred thirty thousand, two hundred thirteen".