213506232011365 has 8 divisors (see below), whose sum is σ = 256207575086208. Its totient is φ = 170804921160720.

The previous prime is 213506232011363. The next prime is 213506232011411. The reversal of 213506232011365 is 563110232605312.

213506232011365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213506232011365 - 2¹ = 213506232011363 is a prime.

It is a super-2 number, since 2×213506232011365² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213506232011363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10338720 + ... + 23106310.

It is an arithmetic number, because the mean of its divisors is an integer number (32025946885776).

Almost surely, 2^{213506232011365} is an apocalyptic number.

It is an amenable number.

213506232011365 is a deficient number, since it is larger than the sum of its proper divisors (42701343074843).

213506232011365 is a wasteful number, since it uses less digits than its factorization.

213506232011365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16112099.

The product of its (nonzero) digits is 194400, while the sum is 40.

Adding to 213506232011365 its reverse (563110232605312), we get a palindrome (776616464616677).

The spelling of 213506232011365 in words is "two hundred thirteen trillion, five hundred six billion, two hundred thirty-two million, eleven thousand, three hundred sixty-five".