1020323532255 has 16 divisors (see below), whose sum is σ = 1633521081984. Its totient is φ = 543838073760.

The previous prime is 1020323532227. The next prime is 1020323532257. The reversal of 1020323532255 is 5522353230201.

It is not a de Polignac number, because 1020323532255 - 2⁸ = 1020323531999 is a prime.

It is a super-2 number, since 2×1020323532255² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020323532257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20879581 + ... + 20928390.

It is an arithmetic number, because the mean of its divisors is an integer number (102095067624).

Almost surely, 2^{1020323532255} is an apocalyptic number.

1020323532255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020323532255 is a deficient number, since it is larger than the sum of its proper divisors (613197549729).

1020323532255 is a wasteful number, since it uses less digits than its factorization.

1020323532255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41809606.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 1020323532255 its reverse (5522353230201), we get a palindrome (6542676762456).

The spelling of 1020323532255 in words is "one trillion, twenty billion, three hundred twenty-three million, five hundred thirty-two thousand, two hundred fifty-five".