12303221311320 has 64 divisors (see below), whose sum is σ = 36917421408000. Its totient is φ = 3280169463168.

The previous prime is 12303221311319. The next prime is 12303221311331. The reversal of 12303221311320 is 2311312230321.

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 15 ways as a sum of consecutive naturals, for example, 10200810 + ... + 11342969.

It is an arithmetic number, because the mean of its divisors is an integer number (576834709500).

Almost surely, 2^{12303221311320} is an apocalyptic number.

12303221311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303221311320 is an abundant number, since it is smaller than the sum of its proper divisors (24614200096680).

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

12303221311320 is a wasteful number, since it uses less digits than its factorization.

12303221311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21548552 (or 21548548 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12303221311320 its reverse (2311312230321), we get a palindrome (14614533541641).

The spelling of 12303221311320 in words is "twelve trillion, three hundred three billion, two hundred twenty-one million, three hundred eleven thousand, three hundred twenty".