2303131030021 has 4 divisors (see below), whose sum is σ = 2315997684000. Its totient is φ = 2290264376044.

The previous prime is 2303131030019. The next prime is 2303131030037. The reversal of 2303131030021 is 1200301313032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2303131030021 - 2¹ = 2303131030019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303131031021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6433326721 + ... + 6433327078.

It is an arithmetic number, because the mean of its divisors is an integer number (578999421000).

Almost surely, 2^{2303131030021} is an apocalyptic number.

It is an amenable number.

2303131030021 is a deficient number, since it is larger than the sum of its proper divisors (12866653979).

2303131030021 is a wasteful number, since it uses less digits than its factorization.

2303131030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12866653978.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 2303131030021 its reverse (1200301313032), we get a palindrome (3503432343053).

The spelling of 2303131030021 in words is "two trillion, three hundred three billion, one hundred thirty-one million, thirty thousand, twenty-one".