1020204503255 has 16 divisors (see below), whose sum is σ = 1399400707584. Its totient is φ = 699437250720.

The previous prime is 1020204503249. The next prime is 1020204503291. The reversal of 1020204503255 is 5523054020201.

It is not a de Polignac number, because 1020204503255 - 2¹⁶ = 1020204437719 is a prime.

It is a super-3 number, since 3×1020204503255³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

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, 2551691 + ... + 2924300.

It is an arithmetic number, because the mean of its divisors is an integer number (87462544224).

Almost surely, 2^{1020204503255} is an apocalyptic number.

1020204503255 is a deficient number, since it is larger than the sum of its proper divisors (379196204329).

1020204503255 is an equidigital number, since it uses as much as digits as its factorization.

1020204503255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481326.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 1020204503255 its reverse (5523054020201), we get a palindrome (6543258523456).

The spelling of 1020204503255 in words is "one trillion, twenty billion, two hundred four million, five hundred three thousand, two hundred fifty-five".