121103103320 has 384 divisors, whose sum is σ = 317448806400. Its totient is φ = 41455411200.

The previous prime is 121103103311. The next prime is 121103103353. The reversal of 121103103320 is 23301301121.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 446874785 + ... + 446875055.

It is an arithmetic number, because the mean of its divisors is an integer number (826689600).

Almost surely, 2^121103103320 is an apocalyptic number.

121103103320 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 121103103320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158724403200).

121103103320 is an abundant number, since it is smaller than the sum of its proper divisors (196345703080).

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

121103103320 is a wasteful number, since it uses less digits than its factorization.

121103103320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121103103320 its reverse (23301301121), we get a palindrome (144404404441).

The spelling of 121103103320 in words is "one hundred twenty-one billion, one hundred three million, one hundred three thousand, three hundred twenty".