121003132303320 has 512 divisors, whose sum is σ = 393770929305600. Its totient is φ = 29636366303232.

The previous prime is 121003132303307. The next prime is 121003132303343. The reversal of 121003132303320 is 23303231300121.

121003132303320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 127 ways as a sum of consecutive naturals, for example, 6263416621 + ... + 6263435939.

It is an arithmetic number, because the mean of its divisors is an integer number (769083846300).

Almost surely, 2^{121003132303320} is an apocalyptic number.

121003132303320 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 121003132303320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196885464652800).

121003132303320 is an abundant number, since it is smaller than the sum of its proper divisors (272767797002280).

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

121003132303320 is a wasteful number, since it uses less digits than its factorization.

121003132303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19867 (or 19863 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 121003132303320 its reverse (23303231300121), we get a palindrome (144306363603441).

The spelling of 121003132303320 in words is "one hundred twenty-one trillion, three billion, one hundred thirty-two million, three hundred three thousand, three hundred twenty".