233220523331 has 2 divisors, whose sum is σ = 233220523332. Its totient is φ = 233220523330.

The previous prime is 233220523301. The next prime is 233220523351. The reversal of 233220523331 is 133325022332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233220523331 - 2¹⁸ = 233220261187 is a prime.

It is a super-2 number, since 2×233220523331² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 233220523294 and 233220523303.

It is not a weakly prime, because it can be changed into another prime (233220523301) 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 as a sum of consecutive naturals, namely, 116610261665 + 116610261666.

It is an arithmetic number, because the mean of its divisors is an integer number (116610261666).

Almost surely, 2^233220523331 is an apocalyptic number.

233220523331 is a deficient number, since it is larger than the sum of its proper divisors (1).

233220523331 is an equidigital number, since it uses as much as digits as its factorization.

233220523331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 29.

Adding to 233220523331 its reverse (133325022332), we get a palindrome (366545545663).

The spelling of 233220523331 in words is "two hundred thirty-three billion, two hundred twenty million, five hundred twenty-three thousand, three hundred thirty-one".