121041203403120 has 1920 divisors, whose sum is σ = 530903919974400. Its totient is φ = 22588159426560.

The previous prime is 121041203403091. The next prime is 121041203403179. The reversal of 121041203403120 is 21304302140121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5662205872 + ... + 5662227248.

It is an arithmetic number, because the mean of its divisors is an integer number (276512458320).

Almost surely, 2^{121041203403120} is an apocalyptic number.

121041203403120 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 121041203403120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265451959987200).

121041203403120 is an abundant number, since it is smaller than the sum of its proper divisors (409862716571280).

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

121041203403120 is a wasteful number, since it uses less digits than its factorization.

121041203403120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21488 (or 21455 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121041203403120 its reverse (21304302140121), we get a palindrome (142345505543241).

The spelling of 121041203403120 in words is "one hundred twenty-one trillion, forty-one billion, two hundred three million, four hundred three thousand, one hundred twenty".