71730140311 has 4 divisors (see below), whose sum is σ = 71731206400. Its totient is φ = 71729074224.

The previous prime is 71730140291. The next prime is 71730140341. The reversal of 71730140311 is 11304103717.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71730140311 - 2¹³ = 71730132119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71730140311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71730140341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424791 + ... + 569128.

It is an arithmetic number, because the mean of its divisors is an integer number (17932801600).

Almost surely, 2^71730140311 is an apocalyptic number.

71730140311 is a deficient number, since it is larger than the sum of its proper divisors (1066089).

71730140311 is an equidigital number, since it uses as much as digits as its factorization.

71730140311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066088.

The product of its (nonzero) digits is 1764, while the sum is 28.

The spelling of 71730140311 in words is "seventy-one billion, seven hundred thirty million, one hundred forty thousand, three hundred eleven".