253440301117 has 2 divisors, whose sum is σ = 253440301118. Its totient is φ = 253440301116.

The previous prime is 253440301109. The next prime is 253440301157. The reversal of 253440301117 is 711103044352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133304581881 + 120135719236 = 365109^2 + 346606^2 .

It is a cyclic number.

It is not a de Polignac number, because 253440301117 - 2³ = 253440301109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253440301157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126720150558 + 126720150559.

It is an arithmetic number, because the mean of its divisors is an integer number (126720150559).

Almost surely, 2^253440301117 is an apocalyptic number.

It is an amenable number.

253440301117 is a deficient number, since it is larger than the sum of its proper divisors (1).

253440301117 is an equidigital number, since it uses as much as digits as its factorization.

253440301117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 253440301117 its reverse (711103044352), we get a palindrome (964543345469).

The spelling of 253440301117 in words is "two hundred fifty-three billion, four hundred forty million, three hundred one thousand, one hundred seventeen".