121301344440 has 96 divisors (see below), whose sum is σ = 399781980000. Its totient is φ = 31891426560.

The previous prime is 121301344429. The next prime is 121301344447. The reversal of 121301344440 is 44443103121.

121301344440 is a `hidden beast` number, since 1 + 213 + 0 + 1 + 3 + 4 + 4 + 440 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301344447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2347315 + ... + 2398434.

It is an arithmetic number, because the mean of its divisors is an integer number (4164395625).

Almost surely, 2^121301344440 is an apocalyptic number.

121301344440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301344440 is an abundant number, since it is smaller than the sum of its proper divisors (278480635560).

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

121301344440 is a wasteful number, since it uses less digits than its factorization.

121301344440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745837 (or 4745830 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121301344440 its reverse (44443103121), we get a palindrome (165744447561).

The spelling of 121301344440 in words is "one hundred twenty-one billion, three hundred one million, three hundred forty-four thousand, four hundred forty".