118734038221 has 4 divisors (see below), whose sum is σ = 119230833600. Its totient is φ = 118237242844.

The previous prime is 118734038207. The next prime is 118734038299. The reversal of 118734038221 is 122830437811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122830437811 = 5801 ⋅21174011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118734038221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118734038321) 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, 248397331 + ... + 248397808.

It is an arithmetic number, because the mean of its divisors is an integer number (29807708400).

Almost surely, 2^118734038221 is an apocalyptic number.

It is an amenable number.

118734038221 is a deficient number, since it is larger than the sum of its proper divisors (496795379).

118734038221 is an equidigital number, since it uses as much as digits as its factorization.

118734038221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496795378.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 118734038221 in words is "one hundred eighteen billion, seven hundred thirty-four million, thirty-eight thousand, two hundred twenty-one".