1020321421444 has 48 divisors (see below), whose sum is σ = 1952290771200. Its totient is φ = 463728013056.

The previous prime is 1020321421423. The next prime is 1020321421451. The reversal of 1020321421444 is 4441241230201.

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, 10294677 + ... + 10393315.

It is an arithmetic number, because the mean of its divisors is an integer number (40672724400).

Almost surely, 2^{1020321421444} is an apocalyptic number.

It is an amenable number.

1020321421444 is a deficient number, since it is larger than the sum of its proper divisors (931969349756).

1020321421444 is a wasteful number, since it uses less digits than its factorization.

1020321421444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101692 (or 101690 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1020321421444 its reverse (4441241230201), we get a palindrome (5461562651645).

The spelling of 1020321421444 in words is "one trillion, twenty billion, three hundred twenty-one million, four hundred twenty-one thousand, four hundred forty-four".