213526364143 has 4 divisors (see below), whose sum is σ = 213530903848. Its totient is φ = 213521824440.

The previous prime is 213526364113. The next prime is 213526364189. The reversal of 213526364143 is 341463625312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213526364143 - 2⁵ = 213526364111 is a prime.

It is a super-2 number, since 2×213526364143² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213526364096 and 213526364105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213526364113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2198553 + ... + 2293618.

It is an arithmetic number, because the mean of its divisors is an integer number (53382725962).

Almost surely, 2^213526364143 is an apocalyptic number.

213526364143 is a deficient number, since it is larger than the sum of its proper divisors (4539705).

213526364143 is an equidigital number, since it uses as much as digits as its factorization.

213526364143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539704.

The product of its digits is 311040, while the sum is 40.

Adding to 213526364143 its reverse (341463625312), we get a palindrome (554989989455).

The spelling of 213526364143 in words is "two hundred thirteen billion, five hundred twenty-six million, three hundred sixty-four thousand, one hundred forty-three".