118121280 has 112 divisors (see below), whose sum is σ = 380536704. Its totient is φ = 31037440.

The previous prime is 118121257. The next prime is 118121299. The reversal of 118121280 is 82121811.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 118121280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67294 + ... + 69026.

Almost surely, 2^118121280 is an apocalyptic number.

118121280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118121280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190268352).

118121280 is an abundant number, since it is smaller than the sum of its proper divisors (262415424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118121280 is a wasteful number, since it uses less digits than its factorization.

118121280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

The square root of 118121280 is about 10868.3614220360. The cubic root of 118121280 is about 490.6547958428.

The spelling of 118121280 in words is "one hundred eighteen million, one hundred twenty-one thousand, two hundred eighty".