1020506203245 has 16 divisors (see below), whose sum is σ = 1632822561792. Its totient is φ = 544265762880.

The previous prime is 1020506203193. The next prime is 1020506203247. The reversal of 1020506203245 is 5423026050201.

It is not a de Polignac number, because 1020506203245 - 2¹³ = 1020506195053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020506203247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3264244 + ... + 3563186.

It is an arithmetic number, because the mean of its divisors is an integer number (102051410112).

Almost surely, 2^{1020506203245} is an apocalyptic number.

1020506203245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020506203245 is a deficient number, since it is larger than the sum of its proper divisors (612316358547).

1020506203245 is a wasteful number, since it uses less digits than its factorization.

1020506203245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526532.

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

The spelling of 1020506203245 in words is "one trillion, twenty billion, five hundred six million, two hundred three thousand, two hundred forty-five".