1020051020203 has 6 divisors (see below), whose sum is σ = 1030675431876. Its totient is φ = 1009535020992.

The previous prime is 1020051020201. The next prime is 1020051020273. The reversal of 1020051020203 is 3020201500201.

It is not a de Polignac number, because 1020051020203 - 2¹ = 1020051020201 is a prime.

It is a super-2 number, since 2×1020051020203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020051020201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54196725 + ... + 54215542.

It is an arithmetic number, because the mean of its divisors is an integer number (171779238646).

Almost surely, 2^{1020051020203} is an apocalyptic number.

1020051020203 is a deficient number, since it is larger than the sum of its proper divisors (10624411673).

1020051020203 is an frugal number, since it uses more digits than its factorization.

1020051020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108412461 (or 108412364 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 1020051020203 its reverse (3020201500201), we get a palindrome (4040252520404).

The spelling of 1020051020203 in words is "one trillion, twenty billion, fifty-one million, twenty thousand, two hundred three".