121041020 has 96 divisors (see below), whose sum is σ = 290848320. Its totient is φ = 42024960.

The previous prime is 121041017. The next prime is 121041043. The reversal of 121041020 is 20140121.

It is a junction number, because it is equal to n+sod(n) for n = 121040992 and 121041010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264632 + ... + 265088.

It is an arithmetic number, because the mean of its divisors is an integer number (3029670).

Almost surely, 2^121041020 is an apocalyptic number.

121041020 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 121041020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145424160).

121041020 is an abundant number, since it is smaller than the sum of its proper divisors (169807300).

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

121041020 is a wasteful number, since it uses less digits than its factorization.

121041020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 121041020 is about 11001.8643874572. The cubic root of 121041020 is about 494.6646301608.

Adding to 121041020 its reverse (20140121), we get a palindrome (141181141).

The spelling of 121041020 in words is "one hundred twenty-one million, forty-one thousand, twenty".