1021332450540 has 48 divisors (see below), whose sum is σ = 2866934280672. Its totient is φ = 271669280256.

The previous prime is 1021332450539. The next prime is 1021332450563. The reversal of 1021332450540 is 450542331201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1021332450498 and 1021332450507.

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, 21414729 + ... + 21462368.

It is an arithmetic number, because the mean of its divisors is an integer number (59727797514).

Almost surely, 2^{1021332450540} is an apocalyptic number.

1021332450540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021332450540 is an abundant number, since it is smaller than the sum of its proper divisors (1845601830132).

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

1021332450540 is a wasteful number, since it uses less digits than its factorization.

1021332450540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42877506 (or 42877504 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1021332450540 its reverse (450542331201), we get a palindrome (1471874781741).

The spelling of 1021332450540 in words is "one trillion, twenty-one billion, three hundred thirty-two million, four hundred fifty thousand, five hundred forty".