253431343134353 has 2 divisors, whose sum is σ = 253431343134354. Its totient is φ = 253431343134352.

The previous prime is 253431343134323. The next prime is 253431343134373. The reversal of 253431343134353 is 353431343134352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252964317141904 + 467025992449 = 15904852^2 + 683393^2 .

It is a cyclic number.

It is not a de Polignac number, because 253431343134353 - 2¹⁰ = 253431343133329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253431343134298 and 253431343134307.

It is not a weakly prime, because it can be changed into another prime (253431343134323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126715671567176 + 126715671567177.

It is an arithmetic number, because the mean of its divisors is an integer number (126715671567177).

Almost surely, 2^{253431343134353} is an apocalyptic number.

It is an amenable number.

253431343134353 is a deficient number, since it is larger than the sum of its proper divisors (1).

253431343134353 is an equidigital number, since it uses as much as digits as its factorization.

253431343134353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 47.

Subtracting 253431343134353 from its reverse (353431343134352), we obtain a palindrome (99999999999999).

The spelling of 253431343134353 in words is "two hundred fifty-three trillion, four hundred thirty-one billion, three hundred forty-three million, one hundred thirty-four thousand, three hundred fifty-three".