121344255 has 24 divisors (see below), whose sum is σ = 211150368. Its totient is φ = 64464576.

The previous prime is 121344247. The next prime is 121344263. The reversal of 121344255 is 552443121.

121344255 is a `hidden beast` number, since 1 + 213 + 442 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (121344247) and next prime (121344263).

It is not a de Polignac number, because 121344255 - 2³ = 121344247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6709 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (8797932).

Almost surely, 2^121344255 is an apocalyptic number.

121344255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121344255 is a deficient number, since it is larger than the sum of its proper divisors (89806113).

121344255 is a wasteful number, since it uses less digits than its factorization.

121344255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10527 (or 10524 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 121344255 is about 11015.6368404192. The cubic root of 121344255 is about 495.0773677661.

Adding to 121344255 its reverse (552443121), we get a palindrome (673787376).

The spelling of 121344255 in words is "one hundred twenty-one million, three hundred forty-four thousand, two hundred fifty-five".