120113280 has 320 divisors, whose sum is σ = 491705280. Its totient is φ = 27371520.

The previous prime is 120113267. The next prime is 120113293. The reversal of 120113280 is 82311021.

It is an interprime number because it is at equal distance from previous prime (120113267) and next prime (120113293).

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 362715 + ... + 363045.

It is an arithmetic number, because the mean of its divisors is an integer number (1536579).

Almost surely, 2^120113280 is an apocalyptic number.

120113280 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 120113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245852640).

120113280 is an abundant number, since it is smaller than the sum of its proper divisors (371592000).

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

120113280 is an equidigital number, since it uses as much as digits as its factorization.

120113280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 120113280 is about 10959.6204313836. The cubic root of 120113280 is about 493.3975729998.

The spelling of 120113280 in words is "one hundred twenty million, one hundred thirteen thousand, two hundred eighty".