121013212302320 has 80 divisors (see below), whose sum is σ = 303000987008160. Its totient is φ = 44681429732352.

The previous prime is 121013212302313. The next prime is 121013212302407. The reversal of 121013212302320 is 23203212310121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 145838366 + ... + 146665794.

It is an arithmetic number, because the mean of its divisors is an integer number (3787512337602).

Almost surely, 2^{121013212302320} is an apocalyptic number.

121013212302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121013212302320 is an abundant number, since it is smaller than the sum of its proper divisors (181987774705840).

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

121013212302320 is a wasteful number, since it uses less digits than its factorization.

121013212302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968082 (or 968076 counting only the distinct ones).

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

Adding to 121013212302320 its reverse (23203212310121), we get a palindrome (144216424612441).

The spelling of 121013212302320 in words is "one hundred twenty-one trillion, thirteen billion, two hundred twelve million, three hundred two thousand, three hundred twenty".