233401213 has 2 divisors, whose sum is σ = 233401214. Its totient is φ = 233401212.

The previous prime is 233401141. The next prime is 233401219. The reversal of 233401213 is 312104332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213802884 + 19598329 = 14622^2 + 4427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233401213 is a prime.

It is a super-2 number, since 2×233401213² = 108952252459742738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233401219) 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, 116700606 + 116700607.

It is an arithmetic number, because the mean of its divisors is an integer number (116700607).

Almost surely, 2^233401213 is an apocalyptic number.

It is an amenable number.

233401213 is a deficient number, since it is larger than the sum of its proper divisors (1).

233401213 is an equidigital number, since it uses as much as digits as its factorization.

233401213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 233401213 is about 15277.4740385968. The cubic root of 233401213 is about 615.6979433886.

Adding to 233401213 its reverse (312104332), we get a palindrome (545505545).

The spelling of 233401213 in words is "two hundred thirty-three million, four hundred one thousand, two hundred thirteen".