115435453021 has 64 divisors (see below), whose sum is σ = 146246860800. Its totient is φ = 88895620800.

The previous prime is 115435453019. The next prime is 115435453109. The reversal of 115435453021 is 120354534511.

It is not a de Polignac number, because 115435453021 - 2¹ = 115435453019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115435453421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52398106 + ... + 52400308.

It is an arithmetic number, because the mean of its divisors is an integer number (2285107200).

Almost surely, 2^115435453021 is an apocalyptic number.

It is an amenable number.

115435453021 is a deficient number, since it is larger than the sum of its proper divisors (30811407779).

115435453021 is a wasteful number, since it uses less digits than its factorization.

115435453021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 115435453021 its reverse (120354534511), we get a palindrome (235789987532).

The spelling of 115435453021 in words is "one hundred fifteen billion, four hundred thirty-five million, four hundred fifty-three thousand, twenty-one".