232111204421 has 2 divisors, whose sum is σ = 232111204422. Its totient is φ = 232111204420.

The previous prime is 232111204387. The next prime is 232111204427. The reversal of 232111204421 is 124402111232.

232111204421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122209672225 + 109901532196 = 349585^2 + 331514^2 .

It is a cyclic number.

It is not a de Polignac number, because 232111204421 - 2¹⁴ = 232111188037 is a prime.

It is a super-2 number, since 2×232111204421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232111204427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116055602210 + 116055602211.

It is an arithmetic number, because the mean of its divisors is an integer number (116055602211).

Almost surely, 2^232111204421 is an apocalyptic number.

It is an amenable number.

232111204421 is a deficient number, since it is larger than the sum of its proper divisors (1).

232111204421 is an equidigital number, since it uses as much as digits as its factorization.

232111204421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 232111204421 its reverse (124402111232), we get a palindrome (356513315653).

The spelling of 232111204421 in words is "two hundred thirty-two billion, one hundred eleven million, two hundred four thousand, four hundred twenty-one".