1021240203344 has 20 divisors (see below), whose sum is σ = 1978708161120. Its totient is φ = 510605839200.

The previous prime is 1021240203341. The next prime is 1021240203367. The reversal of 1021240203344 is 4433020421201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021240203341) 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 3 ways as a sum of consecutive naturals, for example, 288314 + ... + 1457945.

It is an arithmetic number, because the mean of its divisors is an integer number (98935408056).

Almost surely, 2^{1021240203344} is an apocalyptic number.

It is an amenable number.

1021240203344 is a deficient number, since it is larger than the sum of its proper divisors (957467957776).

1021240203344 is a wasteful number, since it uses less digits than its factorization.

1021240203344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782818 (or 1782812 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1021240203344 its reverse (4433020421201), we get a palindrome (5454260624545).

The spelling of 1021240203344 in words is "one trillion, twenty-one billion, two hundred forty million, two hundred three thousand, three hundred forty-four".