213434621345115 has 64 divisors (see below), whose sum is σ = 382348219207680. Its totient is φ = 112959186762240.

The previous prime is 213434621345021. The next prime is 213434621345117. The reversal of 213434621345115 is 511543126434312.

213434621345115 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 3 + 4 + 621 + 3 + 4 + 5 + 1 + 15 = 666.

It is not a de Polignac number, because 213434621345115 - 2⁹ = 213434621344603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (213434621345117) 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, 596035414 + ... + 596393396.

It is an arithmetic number, because the mean of its divisors is an integer number (5974190925120).

Almost surely, 2^{213434621345115} is an apocalyptic number.

213434621345115 is a deficient number, since it is larger than the sum of its proper divisors (168913597862565).

213434621345115 is a wasteful number, since it uses less digits than its factorization.

213434621345115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391841 (or 391835 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

Adding to 213434621345115 its reverse (511543126434312), we get a palindrome (724977747779427).

The spelling of 213434621345115 in words is "two hundred thirteen trillion, four hundred thirty-four billion, six hundred twenty-one million, three hundred forty-five thousand, one hundred fifteen".