68340071121 has 24 divisors (see below), whose sum is σ = 106390946880. Its totient is φ = 38906273952.

The previous prime is 68340071117. The next prime is 68340071141. The reversal of 68340071121 is 12117004386.

It is not a de Polignac number, because 68340071121 - 2² = 68340071117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68340071141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 824581 + ... + 903666.

It is an arithmetic number, because the mean of its divisors is an integer number (4432956120).

Almost surely, 2^68340071121 is an apocalyptic number.

It is an amenable number.

68340071121 is a deficient number, since it is larger than the sum of its proper divisors (38050875759).

68340071121 is a wasteful number, since it uses less digits than its factorization.

68340071121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728533 (or 1728526 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 68340071121 in words is "sixty-eight billion, three hundred forty million, seventy-one thousand, one hundred twenty-one".