11871652320011 has 6 divisors (see below), whose sum is σ = 13049006269236. Its totient is φ = 10792411199900.

The previous prime is 11871652319929. The next prime is 11871652320013. The reversal of 11871652320011 is 11002325617811.

It is not a de Polignac number, because 11871652320011 - 2³⁴ = 11854472450827 is a prime.

It is a super-2 number, since 2×11871652320011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11871652320013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49056414425 + ... + 49056414666.

It is an arithmetic number, because the mean of its divisors is an integer number (2174834378206).

Almost surely, 2^{11871652320011} is an apocalyptic number.

11871652320011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11871652320011 is a deficient number, since it is larger than the sum of its proper divisors (1177353949225).

11871652320011 is an equidigital number, since it uses as much as digits as its factorization.

11871652320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98112829113 (or 98112829102 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

Adding to 11871652320011 its reverse (11002325617811), we get a palindrome (22873977937822).

The spelling of 11871652320011 in words is "eleven trillion, eight hundred seventy-one billion, six hundred fifty-two million, three hundred twenty thousand, eleven".