71320314121 has 8 divisors (see below), whose sum is σ = 81511222464. Its totient is φ = 61129978800.

The previous prime is 71320314101. The next prime is 71320314139. The reversal of 71320314121 is 12141302317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71320314121 - 2¹¹ = 71320312073 is a prime.

It is a super-2 number, since 2×71320314121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71320314101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168771 + ... + 413671.

It is an arithmetic number, because the mean of its divisors is an integer number (10188902808).

Almost surely, 2^71320314121 is an apocalyptic number.

It is an amenable number.

71320314121 is a deficient number, since it is larger than the sum of its proper divisors (10190908343).

71320314121 is a wasteful number, since it uses less digits than its factorization.

71320314121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286511.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 71320314121 its reverse (12141302317), we get a palindrome (83461616438).

The spelling of 71320314121 in words is "seventy-one billion, three hundred twenty million, three hundred fourteen thousand, one hundred twenty-one".