71121440201 has 16 divisors (see below), whose sum is σ = 82973721600. Its totient is φ = 59700038928.

The previous prime is 71121440171. The next prime is 71121440231. The reversal of 71121440201 is 10204412117.

It is an interprime number because it is at equal distance from previous prime (71121440171) and next prime (71121440231).

It is a cyclic number.

It is not a de Polignac number, because 71121440201 - 2¹⁰ = 71121439177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71121440231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218771 + ... + 436008.

It is an arithmetic number, because the mean of its divisors is an integer number (5185857600).

Almost surely, 2^71121440201 is an apocalyptic number.

It is an amenable number.

71121440201 is a deficient number, since it is larger than the sum of its proper divisors (11852281399).

71121440201 is a wasteful number, since it uses less digits than its factorization.

71121440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655108.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 71121440201 its reverse (10204412117), we get a palindrome (81325852318).

The spelling of 71121440201 in words is "seventy-one billion, one hundred twenty-one million, four hundred forty thousand, two hundred one".