213500435034255 has 16 divisors (see below), whose sum is σ = 356452900231680. Its totient is φ = 108916163959328.

The previous prime is 213500435034251. The next prime is 213500435034331. The reversal of 213500435034255 is 552430534005312.

213500435034255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213500435034255 - 2² = 213500435034251 is a prime.

It is a super-2 number, since 2×213500435034255² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213500435034251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309420919995 + ... + 309420920684.

It is an arithmetic number, because the mean of its divisors is an integer number (22278306264480).

Almost surely, 2^{213500435034255} is an apocalyptic number.

213500435034255 is a deficient number, since it is larger than the sum of its proper divisors (142952465197425).

213500435034255 is a wasteful number, since it uses less digits than its factorization.

213500435034255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618841840710.

The product of its (nonzero) digits is 1080000, while the sum is 42.

Adding to 213500435034255 its reverse (552430534005312), we get a palindrome (765930969039567).

The spelling of 213500435034255 in words is "two hundred thirteen trillion, five hundred billion, four hundred thirty-five million, thirty-four thousand, two hundred fifty-five".