1321050300450 has 24 divisors (see below), whose sum is σ = 3276204745488. Its totient is φ = 352280080080.

The previous prime is 1321050300433. The next prime is 1321050300457. The reversal of 1321050300450 is 540030501231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321050300450.

It is not an unprimeable number, because it can be changed into a prime (1321050300457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4403500852 + ... + 4403501151.

It is an arithmetic number, because the mean of its divisors is an integer number (136508531062).

Almost surely, 2^{1321050300450} is an apocalyptic number.

1321050300450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321050300450 is an abundant number, since it is smaller than the sum of its proper divisors (1955154445038).

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

1321050300450 is a wasteful number, since it uses less digits than its factorization.

1321050300450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807002018 (or 8807002013 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 1321050300450 its reverse (540030501231), we get a palindrome (1861080801681).

The spelling of 1321050300450 in words is "one trillion, three hundred twenty-one billion, fifty million, three hundred thousand, four hundred fifty".