233023312021 has 2 divisors, whose sum is σ = 233023312022. Its totient is φ = 233023312020.

The previous prime is 233023312019. The next prime is 233023312037. The reversal of 233023312021 is 120213320332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190746195025 + 42277116996 = 436745^2 + 205614^2 .

It is a cyclic number.

It is not a de Polignac number, because 233023312021 - 2¹ = 233023312019 is a prime.

Together with 233023312019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 233023311983 and 233023312001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233023312051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116511656010 + 116511656011.

It is an arithmetic number, because the mean of its divisors is an integer number (116511656011).

Almost surely, 2^233023312021 is an apocalyptic number.

It is an amenable number.

233023312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

233023312021 is an equidigital number, since it uses as much as digits as its factorization.

233023312021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 233023312021 its reverse (120213320332), we get a palindrome (353236632353).

The spelling of 233023312021 in words is "two hundred thirty-three billion, twenty-three million, three hundred twelve thousand, twenty-one".