253321330511 has 2 divisors, whose sum is σ = 253321330512. Its totient is φ = 253321330510.

The previous prime is 253321330501. The next prime is 253321330531. The reversal of 253321330511 is 115033123352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253321330511 - 2¹⁸ = 253321068367 is a prime.

It is a super-2 number, since 2×253321330511² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253321330501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126660665255 + 126660665256.

It is an arithmetic number, because the mean of its divisors is an integer number (126660665256).

Almost surely, 2^253321330511 is an apocalyptic number.

253321330511 is a deficient number, since it is larger than the sum of its proper divisors (1).

253321330511 is an equidigital number, since it uses as much as digits as its factorization.

253321330511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 253321330511 its reverse (115033123352), we get a palindrome (368354453863).

The spelling of 253321330511 in words is "two hundred fifty-three billion, three hundred twenty-one million, three hundred thirty thousand, five hundred eleven".