121042433144 has 128 divisors (see below), whose sum is σ = 249359040000. Its totient is φ = 54882261504.

The previous prime is 121042433111. The next prime is 121042433173. The reversal of 121042433144 is 441334240121.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 162910037 + ... + 162910779.

It is an arithmetic number, because the mean of its divisors is an integer number (1948117500).

Almost surely, 2^121042433144 is an apocalyptic number.

It is an amenable number.

121042433144 is an abundant number, since it is smaller than the sum of its proper divisors (128316606856).

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

121042433144 is a wasteful number, since it uses less digits than its factorization.

121042433144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 121042433144 its reverse (441334240121), we get a palindrome (562376673265).

The spelling of 121042433144 in words is "one hundred twenty-one billion, forty-two million, four hundred thirty-three thousand, one hundred forty-four".