2023305768881 has 4 divisors (see below), whose sum is σ = 2024671945764. Its totient is φ = 2021939592000.

The previous prime is 2023305768829. The next prime is 2023305768889. The reversal of 2023305768881 is 1888675033202.

It is a happy number.

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 713333957281 + 1309971811600 = 844591^2 + 1144540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2023305768881 is a prime.

It is a super-2 number, since 2×2023305768881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023305768889) 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, 683086220 + ... + 683089181.

It is an arithmetic number, because the mean of its divisors is an integer number (506167986441).

Almost surely, 2^{2023305768881} is an apocalyptic number.

It is an amenable number.

2023305768881 is a deficient number, since it is larger than the sum of its proper divisors (1366176883).

2023305768881 is a wasteful number, since it uses less digits than its factorization.

2023305768881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366176882.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 2023305768881 in words is "two trillion, twenty-three billion, three hundred five million, seven hundred sixty-eight thousand, eight hundred eighty-one".