231222311344253 has 2 divisors, whose sum is σ = 231222311344254. Its totient is φ = 231222311344252.

The previous prime is 231222311344217. The next prime is 231222311344291. The reversal of 231222311344253 is 352443113222132.

It is an a-pointer prime, because the next prime (231222311344291) can be obtained adding 231222311344253 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219975557654329 + 11246753689924 = 14831573^2 + 3353618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231222311344253 is a prime.

It is a super-2 number, since 2×231222311344253² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231222311343253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115611155672126 + 115611155672127.

It is an arithmetic number, because the mean of its divisors is an integer number (115611155672127).

Almost surely, 2^{231222311344253} is an apocalyptic number.

It is an amenable number.

231222311344253 is a deficient number, since it is larger than the sum of its proper divisors (1).

231222311344253 is an equidigital number, since it uses as much as digits as its factorization.

231222311344253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 38.

Adding to 231222311344253 its reverse (352443113222132), we get a palindrome (583665424566385).

The spelling of 231222311344253 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, three hundred eleven million, three hundred forty-four thousand, two hundred fifty-three".