121300256 has 96 divisors (see below), whose sum is σ = 313528320. Its totient is φ = 44755200.

The previous prime is 121300159. The next prime is 121300261. The reversal of 121300256 is 652003121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45521 + ... + 48111.

It is an arithmetic number, because the mean of its divisors is an integer number (3265920).

Almost surely, 2^121300256 is an apocalyptic number.

121300256 is a gapful number since it is divisible by the number (16) 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 121300256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156764160).

121300256 is an abundant number, since it is smaller than the sum of its proper divisors (192228064).

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

121300256 is a wasteful number, since it uses less digits than its factorization.

121300256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638 (or 2630 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 121300256 is about 11013.6395437657. The cubic root of 121300256 is about 495.0175227617.

Adding to 121300256 its reverse (652003121), we get a palindrome (773303377).

The spelling of 121300256 in words is "one hundred twenty-one million, three hundred thousand, two hundred fifty-six".