2021030130403 has 4 divisors (see below), whose sum is σ = 2021467492768. Its totient is φ = 2020592768040.

The previous prime is 2021030130377. The next prime is 2021030130433. The reversal of 2021030130403 is 3040310301202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021030130403 - 2²¹ = 2021028033251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021030130433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218674251 + ... + 218683492.

It is an arithmetic number, because the mean of its divisors is an integer number (505366873192).

Almost surely, 2^{2021030130403} is an apocalyptic number.

2021030130403 is a deficient number, since it is larger than the sum of its proper divisors (437362365).

2021030130403 is an equidigital number, since it uses as much as digits as its factorization.

2021030130403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437362364.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2021030130403 its reverse (3040310301202), we get a palindrome (5061340431605).

The spelling of 2021030130403 in words is "two trillion, twenty-one billion, thirty million, one hundred thirty thousand, four hundred three".