121350020 has 48 divisors (see below), whose sum is σ = 282744000. Its totient is φ = 43374720.

The previous prime is 121350011. The next prime is 121350059. The reversal of 121350020 is 20053121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121349977 and 121350004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8306 + ... + 17654.

It is an arithmetic number, because the mean of its divisors is an integer number (5890500).

Almost surely, 2^121350020 is an apocalyptic number.

121350020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121350020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141372000).

121350020 is an abundant number, since it is smaller than the sum of its proper divisors (161393980).

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

121350020 is a wasteful number, since it uses less digits than its factorization.

121350020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9428 (or 9426 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 121350020 is about 11015.8985107888. The cubic root of 121350020 is about 495.0852079280.

The spelling of 121350020 in words is "one hundred twenty-one million, three hundred fifty thousand, twenty".