1020530533040 has 40 divisors (see below), whose sum is σ = 2375030616288. Its totient is φ = 407817008640.

The previous prime is 1020530533037. The next prime is 1020530533049. The reversal of 1020530533040 is 403350350201.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1020530533049) 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 7 ways as a sum of consecutive naturals, for example, 6091916 + ... + 6257195.

Almost surely, 2^{1020530533040} is an apocalyptic number.

1020530533040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020530533040 is an abundant number, since it is smaller than the sum of its proper divisors (1354500083248).

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

1020530533040 is a wasteful number, since it uses less digits than its factorization.

1020530533040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350157 (or 12350151 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 1020530533040 its reverse (403350350201), we get a palindrome (1423880883241).

The spelling of 1020530533040 in words is "one trillion, twenty billion, five hundred thirty million, five hundred thirty-three thousand, forty".