71013122140 has 24 divisors (see below), whose sum is σ = 149876949600. Its totient is φ = 28262507328.

The previous prime is 71013122107. The next prime is 71013122207. The reversal of 71013122140 is 4122131017.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 8917267 + ... + 8925226.

It is an arithmetic number, because the mean of its divisors is an integer number (6244872900).

Almost surely, 2^71013122140 is an apocalyptic number.

It is an amenable number.

71013122140 is an abundant number, since it is smaller than the sum of its proper divisors (78863827460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71013122140 is a wasteful number, since it uses less digits than its factorization.

71013122140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842701 (or 17842699 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 71013122140 its reverse (4122131017), we get a palindrome (75135253157).

The spelling of 71013122140 in words is "seventy-one billion, thirteen million, one hundred twenty-two thousand, one hundred forty".