2030204431021 has 4 divisors (see below), whose sum is σ = 2186374002652. Its totient is φ = 1874034859392.

The previous prime is 2030204430931. The next prime is 2030204431039. The reversal of 2030204431021 is 1201344020302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 582367396900 + 1447837034121 = 763130^2 + 1203261^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030204431021 - 2⁷ = 2030204430893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2030204430983 and 2030204431001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030204432021) 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, 78084785796 + ... + 78084785821.

It is an arithmetic number, because the mean of its divisors is an integer number (546593500663).

Almost surely, 2^{2030204431021} is an apocalyptic number.

It is an amenable number.

2030204431021 is a deficient number, since it is larger than the sum of its proper divisors (156169571631).

2030204431021 is a wasteful number, since it uses less digits than its factorization.

2030204431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156169571630.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2030204431021 its reverse (1201344020302), we get a palindrome (3231548451323).

The spelling of 2030204431021 in words is "two trillion, thirty billion, two hundred four million, four hundred thirty-one thousand, twenty-one".