1212103323300 has 144 divisors (see below), whose sum is σ = 3529094873472. Its totient is φ = 321196646400.

The previous prime is 1212103323287. The next prime is 1212103323349. The reversal of 1212103323300 is 33233012121.

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 47 ways as a sum of consecutive naturals, for example, 54472777 + ... + 54495023.

It is an arithmetic number, because the mean of its divisors is an integer number (24507603288).

Almost surely, 2^{1212103323300} is an apocalyptic number.

1212103323300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212103323300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1764547436736).

1212103323300 is an abundant number, since it is smaller than the sum of its proper divisors (2316991550172).

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

1212103323300 is a wasteful number, since it uses less digits than its factorization.

1212103323300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23398 (or 23391 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1212103323300 its reverse (33233012121), we get a palindrome (1245336335421).

The spelling of 1212103323300 in words is "one trillion, two hundred twelve billion, one hundred three million, three hundred twenty-three thousand, three hundred".