1020505204326 has 16 divisors (see below), whose sum is σ = 2041020313200. Its totient is φ = 340166750688.

The previous prime is 1020505204319. The next prime is 1020505204337. The reversal of 1020505204326 is 6234025050201.

It is a super-2 number, since 2×1020505204326² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020505204293 and 1020505204302.

It is a congruent number.

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, 2171640 + ... + 2599428.

It is an arithmetic number, because the mean of its divisors is an integer number (127563769575).

Almost surely, 2^{1020505204326} is an apocalyptic number.

1020505204326 is an abundant number, since it is smaller than the sum of its proper divisors (1020515108874).

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

1020505204326 is a wasteful number, since it uses less digits than its factorization.

1020505204326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825383.

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

The spelling of 1020505204326 in words is "one trillion, twenty billion, five hundred five million, two hundred four thousand, three hundred twenty-six".