118089820981 has 8 divisors (see below), whose sum is σ = 128833758144. Its totient is φ = 107347300320.

The previous prime is 118089820931. The next prime is 118089820999. The reversal of 118089820981 is 189028980811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118089820981 - 2¹⁷ = 118089689909 is a prime.

It is a super-2 number, since 2×118089820981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118089820921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175905 + ... + 516838.

It is an arithmetic number, because the mean of its divisors is an integer number (16104219768).

Almost surely, 2^118089820981 is an apocalyptic number.

118089820981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118089820981 is a deficient number, since it is larger than the sum of its proper divisors (10743937163).

118089820981 is a wasteful number, since it uses less digits than its factorization.

118089820981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708251.

The product of its (nonzero) digits is 663552, while the sum is 55.

The spelling of 118089820981 in words is "one hundred eighteen billion, eighty-nine million, eight hundred twenty thousand, nine hundred eighty-one".