2303312023021 has 4 divisors (see below), whose sum is σ = 2317104310752. Its totient is φ = 2289519735292.

The previous prime is 2303312022983. The next prime is 2303312023031. The reversal of 2303312023021 is 1203202133032.

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 2303312023021 - 2¹⁵ = 2303311990253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2303312022983 and 2303312023001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303312023031) 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, 6896143615 + ... + 6896143948.

It is an arithmetic number, because the mean of its divisors is an integer number (579276077688).

Almost surely, 2^{2303312023021} is an apocalyptic number.

It is an amenable number.

2303312023021 is a deficient number, since it is larger than the sum of its proper divisors (13792287731).

2303312023021 is a wasteful number, since it uses less digits than its factorization.

2303312023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792287730.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2303312023021 its reverse (1203202133032), we get a palindrome (3506514156053).

The spelling of 2303312023021 in words is "two trillion, three hundred three billion, three hundred twelve million, twenty-three thousand, twenty-one".