12310021221300 has 144 divisors (see below), whose sum is σ = 43172114932800. Its totient is φ = 2984247561600.

The previous prime is 12310021221293. The next prime is 12310021221313. The reversal of 12310021221300 is 312212001321.

12310021221300 is a `hidden beast` number, since 1 + 23 + 100 + 21 + 221 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207209715 + ... + 207269114.

It is an arithmetic number, because the mean of its divisors is an integer number (299806353700).

Almost surely, 2^{12310021221300} is an apocalyptic number.

12310021221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310021221300 is an abundant number, since it is smaller than the sum of its proper divisors (30862093711500).

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

12310021221300 is a wasteful number, since it uses less digits than its factorization.

12310021221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414478863 (or 414478850 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12310021221300 its reverse (312212001321), we get a palindrome (12622233222621).

It can be divided in two parts, 123100 and 21221300, that added together give a square (21344400 = 4620²).

The spelling of 12310021221300 in words is "twelve trillion, three hundred ten billion, twenty-one million, two hundred twenty-one thousand, three hundred".