121110321013020 has 72 divisors (see below), whose sum is σ = 367531759170576. Its totient is φ = 32281686884352.

The previous prime is 121110321012991. The next prime is 121110321013021. The reversal of 121110321013020 is 20310123011121.

121110321013020 is a `hidden beast` number, since 1 + 211 + 1 + 0 + 321 + 0 + 130 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121110321012984 and 121110321013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110321013021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149581797 + ... + 150389276.

It is an arithmetic number, because the mean of its divisors is an integer number (5104607766258).

Almost surely, 2^{121110321013020} is an apocalyptic number.

121110321013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121110321013020 is an abundant number, since it is smaller than the sum of its proper divisors (246421438157556).

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

121110321013020 is a wasteful number, since it uses less digits than its factorization.

121110321013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299973331 (or 299973326 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121110321013020 its reverse (20310123011121), we get a palindrome (141420444024141).

The spelling of 121110321013020 in words is "one hundred twenty-one trillion, one hundred ten billion, three hundred twenty-one million, thirteen thousand, twenty".