121241110240 has 24 divisors (see below), whose sum is σ = 286432123320. Its totient is φ = 48496444032.

The previous prime is 121241110169. The next prime is 121241110259. The reversal of 121241110240 is 42011142121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378878310 + ... + 378878629.

It is an arithmetic number, because the mean of its divisors is an integer number (11934671805).

Almost surely, 2^121241110240 is an apocalyptic number.

121241110240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121241110240 is an abundant number, since it is smaller than the sum of its proper divisors (165191013080).

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

121241110240 is an equidigital number, since it uses as much as digits as its factorization.

121241110240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757756954 (or 757756946 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121241110240 its reverse (42011142121), we get a palindrome (163252252361).

The spelling of 121241110240 in words is "one hundred twenty-one billion, two hundred forty-one million, one hundred ten thousand, two hundred forty".