1121241255 has 8 divisors (see below), whose sum is σ = 1793986032. Its totient is φ = 597995328.

The previous prime is 1121241223. The next prime is 1121241269. The reversal of 1121241255 is 5521421211.

It is a happy number.

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

It is not a de Polignac number, because 1121241255 - 2⁵ = 1121241223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37374694 + ... + 37374723.

It is an arithmetic number, because the mean of its divisors is an integer number (224248254).

Almost surely, 2^1121241255 is an apocalyptic number.

1121241255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1121241255 is a deficient number, since it is larger than the sum of its proper divisors (672744777).

1121241255 is an equidigital number, since it uses as much as digits as its factorization.

1121241255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74749425.

The product of its digits is 800, while the sum is 24.

The square root of 1121241255 is about 33484.9407196728. The cubic root of 1121241255 is about 1038.8823221401.

Adding to 1121241255 its reverse (5521421211), we get a palindrome (6642662466).

The spelling of 1121241255 in words is "one billion, one hundred twenty-one million, two hundred forty-one thousand, two hundred fifty-five".