121103032320 has 168 divisors, whose sum is σ = 419799499236. Its totient is φ = 32294043648.

The previous prime is 121103032307. The next prime is 121103032397. The reversal of 121103032320 is 23230301121.

121103032320 is a `hidden beast` number, since 121 + 10 + 303 + 232 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 120370139136 + 732893184 = 346944^2 + 27072^2 .

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 = 121103032293 and 121103032302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204384 + ... + 532896.

Almost surely, 2^121103032320 is an apocalyptic number.

121103032320 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 121103032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209899749618).

121103032320 is an abundant number, since it is smaller than the sum of its proper divisors (298696466916).

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

121103032320 is an equidigital number, since it uses as much as digits as its factorization.

121103032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328550 (or 328523 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121103032320 its reverse (23230301121), we get a palindrome (144333333441).

The spelling of 121103032320 in words is "one hundred twenty-one billion, one hundred three million, thirty-two thousand, three hundred twenty".