121002913040 has 40 divisors (see below), whose sum is σ = 281366574720. Its totient is φ = 48395177856.

The previous prime is 121002913039. The next prime is 121002913063. The reversal of 121002913040 is 40319200121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 121002912997 and 121002913015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588041 + ... + 766679.

It is an arithmetic number, because the mean of its divisors is an integer number (7034164368).

Almost surely, 2^121002913040 is an apocalyptic number.

121002913040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002913040 is an abundant number, since it is smaller than the sum of its proper divisors (160363661680).

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

121002913040 is a wasteful number, since it uses less digits than its factorization.

121002913040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187119 (or 187113 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 121002913040 in words is "one hundred twenty-one billion, two million, nine hundred thirteen thousand, forty".