1020200331012 has 12 divisors (see below), whose sum is σ = 2380467439056. Its totient is φ = 340066777000.

The previous prime is 1020200331001. The next prime is 1020200331019. The reversal of 1020200331012 is 2101330020201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1020200330982 and 1020200331000.

It is not an unprimeable number, because it can be changed into a prime (1020200331019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42508347114 + ... + 42508347137.

It is an arithmetic number, because the mean of its divisors is an integer number (198372286588).

Almost surely, 2^{1020200331012} is an apocalyptic number.

1020200331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020200331012 is an abundant number, since it is smaller than the sum of its proper divisors (1360267108044).

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

1020200331012 is a wasteful number, since it uses less digits than its factorization.

1020200331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85016694258 (or 85016694256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1020200331012 its reverse (2101330020201), we get a palindrome (3121530351213).

The spelling of 1020200331012 in words is "one trillion, twenty billion, two hundred million, three hundred thirty-one thousand, twelve".