71130322001 has 2 divisors, whose sum is σ = 71130322002. Its totient is φ = 71130322000.

The previous prime is 71130321961. The next prime is 71130322019. The reversal of 71130322001 is 10022303117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46311470401 + 24818851600 = 215201^2 + 157540^2 .

It is an emirp because it is prime and its reverse (10022303117) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71130322001 is a prime.

It is not a weakly prime, because it can be changed into another prime (71130322051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35565161000 + 35565161001.

It is an arithmetic number, because the mean of its divisors is an integer number (35565161001).

Almost surely, 2^71130322001 is an apocalyptic number.

It is an amenable number.

71130322001 is a deficient number, since it is larger than the sum of its proper divisors (1).

71130322001 is an equidigital number, since it uses as much as digits as its factorization.

71130322001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

Adding to 71130322001 its reverse (10022303117), we get a palindrome (81152625118).

The spelling of 71130322001 in words is "seventy-one billion, one hundred thirty million, three hundred twenty-two thousand, one".