235031213 has 2 divisors, whose sum is σ = 235031214. Its totient is φ = 235031212.

The previous prime is 235031201. The next prime is 235031219. The reversal of 235031213 is 312130532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154803364 + 80227849 = 12442^2 + 8957^2 .

It is a cyclic number.

It is not a de Polignac number, because 235031213 - 2⁶ = 235031149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235031219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117515606 + 117515607.

It is an arithmetic number, because the mean of its divisors is an integer number (117515607).

Almost surely, 2^235031213 is an apocalyptic number.

It is an amenable number.

235031213 is a deficient number, since it is larger than the sum of its proper divisors (1).

235031213 is an equidigital number, since it uses as much as digits as its factorization.

235031213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 235031213 is about 15330.7277387605. The cubic root of 235031213 is about 617.1278994304.

Adding to 235031213 its reverse (312130532), we get a palindrome (547161745).

The spelling of 235031213 in words is "two hundred thirty-five million, thirty-one thousand, two hundred thirteen".