1321010303200 has 72 divisors (see below), whose sum is σ = 3685618761552. Its totient is φ = 452917816320.

The previous prime is 1321010303167. The next prime is 1321010303203. The reversal of 1321010303200 is 23030101231.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321010303203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117941749 + ... + 117952948.

It is an arithmetic number, because the mean of its divisors is an integer number (51189149466).

Almost surely, 2^{1321010303200} is an apocalyptic number.

1321010303200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321010303200 is an abundant number, since it is smaller than the sum of its proper divisors (2364608458352).

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

1321010303200 is a wasteful number, since it uses less digits than its factorization.

1321010303200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235894724 (or 235894711 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1321010303200 its reverse (23030101231), we get a palindrome (1344040404431).

The spelling of 1321010303200 in words is "one trillion, three hundred twenty-one billion, ten million, three hundred three thousand, two hundred".