1071718815011 has 4 divisors (see below), whose sum is σ = 1154158723872. Its totient is φ = 989278906152.

The previous prime is 1071718814993. The next prime is 1071718815073. The reversal of 1071718815011 is 1105188171701.

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 1071718815011 - 2¹⁴ = 1071718798627 is a prime.

It is a super-2 number, since 2×1071718815011² (a number of 25 digits) contains 22 as substring.

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 1071718815011.

It is not an unprimeable number, because it can be changed into a prime (1071718515011) 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, 41219954411 + ... + 41219954436.

It is an arithmetic number, because the mean of its divisors is an integer number (288539680968).

Almost surely, 2^{1071718815011} is an apocalyptic number.

1071718815011 is a deficient number, since it is larger than the sum of its proper divisors (82439908861).

1071718815011 is an equidigital number, since it uses as much as digits as its factorization.

1071718815011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82439908860.

The product of its (nonzero) digits is 15680, while the sum is 41.

The spelling of 1071718815011 in words is "one trillion, seventy-one billion, seven hundred eighteen million, eight hundred fifteen thousand, eleven".