121013220123320 has 64 divisors (see below), whose sum is σ = 311857764223680. Its totient is φ = 41399458569216.

The previous prime is 121013220123281. The next prime is 121013220123331. The reversal of 121013220123320 is 23321022310121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472727699 + ... + 472983618.

It is an arithmetic number, because the mean of its divisors is an integer number (4872777565995).

Almost surely, 2^{121013220123320} is an apocalyptic number.

121013220123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121013220123320 is an abundant number, since it is smaller than the sum of its proper divisors (190844544100360).

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

121013220123320 is a wasteful number, since it uses less digits than its factorization.

121013220123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945711792 (or 945711788 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121013220123320 its reverse (23321022310121), we get a palindrome (144334242433441).

The spelling of 121013220123320 in words is "one hundred twenty-one trillion, thirteen billion, two hundred twenty million, one hundred twenty-three thousand, three hundred twenty".