1021241304040 has 32 divisors (see below), whose sum is σ = 2320543368360. Its totient is φ = 404452000000.

The previous prime is 1021241304029. The next prime is 1021241304059. The reversal of 1021241304040 is 404031421201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1000372034596 + 20869269444 = 1000186^2 + 144462^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126387211 + ... + 126395290.

Almost surely, 2^{1021241304040} is an apocalyptic number.

1021241304040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021241304040 is an abundant number, since it is smaller than the sum of its proper divisors (1299302064320).

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

1021241304040 is a wasteful number, since it uses less digits than its factorization.

1021241304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252782613 (or 252782609 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1021241304040 its reverse (404031421201), we get a palindrome (1425272725241).

The spelling of 1021241304040 in words is "one trillion, twenty-one billion, two hundred forty-one million, three hundred four thousand, forty".