118802191811 has 4 divisors (see below), whose sum is σ = 118844669472. Its totient is φ = 118759714152.

The previous prime is 118802191799. The next prime is 118802191843. The reversal of 118802191811 is 118191208811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118191208811 = 13 ⋅9091631447.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118802191811 is a prime.

It is a super-2 number, since 2×118802191811² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118802196811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21234635 + ... + 21240228.

It is an arithmetic number, because the mean of its divisors is an integer number (29711167368).

Almost surely, 2^118802191811 is an apocalyptic number.

118802191811 is a deficient number, since it is larger than the sum of its proper divisors (42477661).

118802191811 is an equidigital number, since it uses as much as digits as its factorization.

118802191811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42477660.

The product of its (nonzero) digits is 9216, while the sum is 41.

The spelling of 118802191811 in words is "one hundred eighteen billion, eight hundred two million, one hundred ninety-one thousand, eight hundred eleven".