121223130001320 has 128 divisors (see below), whose sum is σ = 376213745664000. Its totient is φ = 31211138058240.

The previous prime is 121223130001313. The next prime is 121223130001333. The reversal of 121223130001320 is 23100031322121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639811161 + ... + 640000599.

It is an arithmetic number, because the mean of its divisors is an integer number (2939169888000).

Almost surely, 2^{121223130001320} is an apocalyptic number.

121223130001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121223130001320 is an abundant number, since it is smaller than the sum of its proper divisors (254990615662680).

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

121223130001320 is a wasteful number, since it uses less digits than its factorization.

121223130001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373363 (or 373359 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121223130001320 its reverse (23100031322121), we get a palindrome (144323161323441).

The spelling of 121223130001320 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, one hundred thirty million, one thousand, three hundred twenty".