1012020111003 has 96 divisors (see below), whose sum is σ = 1553577921792. Its totient is φ = 580968460800.

The previous prime is 1012020110953. The next prime is 1012020111007. The reversal of 1012020111003 is 3001110202101.

It is not a de Polignac number, because 1012020111003 - 2¹⁰ = 1012020109979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012020111003.

It is not an unprimeable number, because it can be changed into a prime (1012020111007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1146115200 + ... + 1146116082.

It is an arithmetic number, because the mean of its divisors is an integer number (16183103352).

Almost surely, 2^{1012020111003} is an apocalyptic number.

1012020111003 is a deficient number, since it is larger than the sum of its proper divisors (541557810789).

1012020111003 is a wasteful number, since it uses less digits than its factorization.

1012020111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1012020111003 its reverse (3001110202101), we get a palindrome (4013130313104).

The spelling of 1012020111003 in words is "one trillion, twelve billion, twenty million, one hundred eleven thousand, three".