1020232005555 has 64 divisors (see below), whose sum is σ = 2049135575040. Its totient is φ = 422634174336.

The previous prime is 1020232005523. The next prime is 1020232005571. The reversal of 1020232005555 is 5555002320201.

It is not a de Polignac number, because 1020232005555 - 2⁵ = 1020232005523 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 11071387 + ... + 11163156.

It is an arithmetic number, because the mean of its divisors is an integer number (32017743360).

Almost surely, 2^{1020232005555} is an apocalyptic number.

1020232005555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020232005555 is an abundant number, since it is smaller than the sum of its proper divisors (1028903569485).

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

1020232005555 is a wasteful number, since it uses less digits than its factorization.

1020232005555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22234600.

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 1020232005555 its reverse (5555002320201), we get a palindrome (6575234325756).

The spelling of 1020232005555 in words is "one trillion, twenty billion, two hundred thirty-two million, five thousand, five hundred fifty-five".