11876127121 has 4 divisors (see below), whose sum is σ = 12574722852. Its totient is φ = 11177531392.

The previous prime is 11876127113. The next prime is 11876127161. The reversal of 11876127121 is 12172167811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9421420096 + 2454707025 = 97064^2 + 49545^2 .

It is a cyclic number.

It is not a de Polignac number, because 11876127121 - 2³ = 11876127113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11876127161) 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, 349297840 + ... + 349297873.

It is an arithmetic number, because the mean of its divisors is an integer number (3143680713).

Almost surely, 2^11876127121 is an apocalyptic number.

It is an amenable number.

11876127121 is a deficient number, since it is larger than the sum of its proper divisors (698595731).

11876127121 is an equidigital number, since it uses as much as digits as its factorization.

11876127121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698595730.

The product of its digits is 9408, while the sum is 37.

The spelling of 11876127121 in words is "eleven billion, eight hundred seventy-six million, one hundred twenty-seven thousand, one hundred twenty-one".