121313010320 has 120 divisors (see below), whose sum is σ = 298158773760. Its totient is φ = 45897166080.

The previous prime is 121313010211. The next prime is 121313010419. The reversal of 121313010320 is 23010313121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19953041 + ... + 19959119.

It is an arithmetic number, because the mean of its divisors is an integer number (2484656448).

Almost surely, 2^121313010320 is an apocalyptic number.

121313010320 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 121313010320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149079386880).

121313010320 is an abundant number, since it is smaller than the sum of its proper divisors (176845763440).

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

121313010320 is a wasteful number, since it uses less digits than its factorization.

121313010320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821 (or 6796 counting only the distinct ones).

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

Adding to 121313010320 its reverse (23010313121), we get a palindrome (144323323441).

The spelling of 121313010320 in words is "one hundred twenty-one billion, three hundred thirteen million, ten thousand, three hundred twenty".