71312135007 has 16 divisors (see below), whose sum is σ = 105053172480. Its totient is φ = 42799439232.

The previous prime is 71312135003. The next prime is 71312135009. The reversal of 71312135007 is 70053121317.

It is not a de Polignac number, because 71312135007 - 2² = 71312135003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71312135003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30396157 + ... + 30398502.

It is an arithmetic number, because the mean of its divisors is an integer number (6565823280).

Almost surely, 2^71312135007 is an apocalyptic number.

71312135007 is a deficient number, since it is larger than the sum of its proper divisors (33741037473).

71312135007 is a wasteful number, since it uses less digits than its factorization.

71312135007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60794702.

The product of its (nonzero) digits is 4410, while the sum is 30.

The spelling of 71312135007 in words is "seventy-one billion, three hundred twelve million, one hundred thirty-five thousand, seven".