1021443411040 has 48 divisors (see below), whose sum is σ = 2598787760688. Its totient is φ = 377148335616.

The previous prime is 1021443410987. The next prime is 1021443411073. The reversal of 1021443411040 is 401143441201.

It is a junction number, because it is equal to n+sod(n) for n = 1021443410996 and 1021443411014.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 245537202 + ... + 245541361.

It is an arithmetic number, because the mean of its divisors is an integer number (54141411681).

Almost surely, 2^{1021443411040} is an apocalyptic number.

1021443411040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021443411040 is an abundant number, since it is smaller than the sum of its proper divisors (1577344349648).

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

1021443411040 is a wasteful number, since it uses less digits than its factorization.

1021443411040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491078591 (or 491078583 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1021443411040 its reverse (401143441201), we get a palindrome (1422586852241).

The spelling of 1021443411040 in words is "one trillion, twenty-one billion, four hundred forty-three million, four hundred eleven thousand, forty".