121103300020 has 12 divisors (see below), whose sum is σ = 254316930084. Its totient is φ = 48441320000.

The previous prime is 121103299973. The next prime is 121103300029. The reversal of 121103300020 is 20003301121.

It can be written as a sum of positive squares in 2 ways, for example, as 58879993104 + 62223306916 = 242652^2 + 249446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103300029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027582481 + ... + 3027582520.

It is an arithmetic number, because the mean of its divisors is an integer number (21193077507).

Almost surely, 2^121103300020 is an apocalyptic number.

121103300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121103300020 is an abundant number, since it is smaller than the sum of its proper divisors (133213630064).

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

121103300020 is a wasteful number, since it uses less digits than its factorization.

121103300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055165010 (or 6055165008 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 121103300020 its reverse (20003301121), we get a palindrome (141106601141).

The spelling of 121103300020 in words is "one hundred twenty-one billion, one hundred three million, three hundred thousand, twenty".