1020321544104 has 24 divisors (see below), whose sum is σ = 2763370848810. Its totient is φ = 340107181344.

The previous prime is 1020321544091. The next prime is 1020321544111. The reversal of 1020321544104 is 4014451230201.

1020321544104 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 3 + 215 + 441 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 882904536900 + 137417007204 = 939630^2 + 370698^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7085566207 + ... + 7085566350.

Almost surely, 2^{1020321544104} is an apocalyptic number.

It is an amenable number.

1020321544104 is an abundant number, since it is smaller than the sum of its proper divisors (1743049304706).

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

1020321544104 is a wasteful number, since it uses less digits than its factorization.

1020321544104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14171132569 (or 14171132562 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1020321544104 its reverse (4014451230201), we get a palindrome (5034772774305).

The spelling of 1020321544104 in words is "one trillion, twenty billion, three hundred twenty-one million, five hundred forty-four thousand, one hundred four".