118184000821 has 2 divisors, whose sum is σ = 118184000822. Its totient is φ = 118184000820.

The previous prime is 118184000819. The next prime is 118184000827. The reversal of 118184000821 is 128000481811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92683104721 + 25500896100 = 304439^2 + 159690^2 .

It is a cyclic number.

It is not a de Polignac number, because 118184000821 - 2¹ = 118184000819 is a prime.

Together with 118184000819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118184000827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59092000410 + 59092000411.

It is an arithmetic number, because the mean of its divisors is an integer number (59092000411).

Almost surely, 2^118184000821 is an apocalyptic number.

It is an amenable number.

118184000821 is a deficient number, since it is larger than the sum of its proper divisors (1).

118184000821 is an equidigital number, since it uses as much as digits as its factorization.

118184000821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 34.

The spelling of 118184000821 in words is "one hundred eighteen billion, one hundred eighty-four million, eight hundred twenty-one", and thus it is an aban number.