11941371843 has 4 divisors (see below), whose sum is σ = 15921829128. Its totient is φ = 7960914560.

The previous prime is 11941371839. The next prime is 11941371887. The reversal of 11941371843 is 34817314911.

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 11941371843 - 2² = 11941371839 is a prime.

It is a super-2 number, since 2×11941371843² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11941371795 and 11941371804.

It is not an unprimeable number, because it can be changed into a prime (11941371943) 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, 1990228638 + ... + 1990228643.

It is an arithmetic number, because the mean of its divisors is an integer number (3980457282).

Almost surely, 2^11941371843 is an apocalyptic number.

11941371843 is a deficient number, since it is larger than the sum of its proper divisors (3980457285).

11941371843 is an equidigital number, since it uses as much as digits as its factorization.

11941371843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980457284.

The product of its digits is 72576, while the sum is 42.

The spelling of 11941371843 in words is "eleven billion, nine hundred forty-one million, three hundred seventy-one thousand, eight hundred forty-three".