115305524311421 has 2 divisors, whose sum is σ = 115305524311422. Its totient is φ = 115305524311420.

The previous prime is 115305524311387. The next prime is 115305524311499. The reversal of 115305524311421 is 124113425503511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102891606602500 + 12413917708921 = 10143550^2 + 3523339^2 .

It is a cyclic number.

It is not a de Polignac number, because 115305524311421 - 2¹⁸ = 115305524049277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115305524211421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57652762155710 + 57652762155711.

It is an arithmetic number, because the mean of its divisors is an integer number (57652762155711).

Almost surely, 2^{115305524311421} is an apocalyptic number.

It is an amenable number.

115305524311421 is a deficient number, since it is larger than the sum of its proper divisors (1).

115305524311421 is an equidigital number, since it uses as much as digits as its factorization.

115305524311421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 115305524311421 its reverse (124113425503511), we get a palindrome (239418949814932).

The spelling of 115305524311421 in words is "one hundred fifteen trillion, three hundred five billion, five hundred twenty-four million, three hundred eleven thousand, four hundred twenty-one".