231222053 has 2 divisors, whose sum is σ = 231222054. Its totient is φ = 231222052.

The previous prime is 231222031. The next prime is 231222067. The reversal of 231222053 is 350222132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204575809 + 26646244 = 14303^2 + 5162^2 .

It is a cyclic number.

It is not a de Polignac number, because 231222053 - 2⁸ = 231221797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231222023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115611026 + 115611027.

It is an arithmetic number, because the mean of its divisors is an integer number (115611027).

Almost surely, 2^231222053 is an apocalyptic number.

It is an amenable number.

231222053 is a deficient number, since it is larger than the sum of its proper divisors (1).

231222053 is an equidigital number, since it uses as much as digits as its factorization.

231222053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 231222053 is about 15205.9874062818. The cubic root of 231222053 is about 613.7757857822.

Adding to 231222053 its reverse (350222132), we get a palindrome (581444185).

The spelling of 231222053 in words is "two hundred thirty-one million, two hundred twenty-two thousand, fifty-three".