253321330531 has 2 divisors, whose sum is σ = 253321330532. Its totient is φ = 253321330530.

The previous prime is 253321330511. The next prime is 253321330543. The reversal of 253321330531 is 135033123352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253321330531 - 2⁵ = 253321330499 is a prime.

It is a super-3 number, since 3×253321330531³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 253321330493 and 253321330502.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126660665265 + 126660665266.

It is an arithmetic number, because the mean of its divisors is an integer number (126660665266).

Almost surely, 2^253321330531 is an apocalyptic number.

253321330531 is a deficient number, since it is larger than the sum of its proper divisors (1).

253321330531 is an equidigital number, since it uses as much as digits as its factorization.

253321330531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 253321330531 its reverse (135033123352), we get a palindrome (388354453883).

The spelling of 253321330531 in words is "two hundred fifty-three billion, three hundred twenty-one million, three hundred thirty thousand, five hundred thirty-one".