2020003121003 has 16 divisors (see below), whose sum is σ = 2430752113920. Its totient is φ = 1639848895776.

The previous prime is 2020003120999. The next prime is 2020003121029. The reversal of 2020003121003 is 3001213000202.

It is a happy number.

It is not a de Polignac number, because 2020003121003 - 2² = 2020003120999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020003121503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621325 + ... + 2582382.

It is an arithmetic number, because the mean of its divisors is an integer number (151922007120).

Almost surely, 2^{2020003121003} is an apocalyptic number.

2020003121003 is a deficient number, since it is larger than the sum of its proper divisors (410748992917).

2020003121003 is a wasteful number, since it uses less digits than its factorization.

2020003121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207346.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 2020003121003 its reverse (3001213000202), we get a palindrome (5021216121205).

The spelling of 2020003121003 in words is "two trillion, twenty billion, three million, one hundred twenty-one thousand, three".