213122332140243 has 4 divisors (see below), whose sum is σ = 284163109520328. Its totient is φ = 142081554760160.

The previous prime is 213122332140227. The next prime is 213122332140281. The reversal of 213122332140243 is 342041233221312.

It is a happy number.

213122332140243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213122332140243 - 2⁴ = 213122332140227 is a prime.

It is a super-2 number, since 2×213122332140243² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213122332130243) 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, 35520388690038 + ... + 35520388690043.

It is an arithmetic number, because the mean of its divisors is an integer number (71040777380082).

Almost surely, 2^{213122332140243} is an apocalyptic number.

213122332140243 is a deficient number, since it is larger than the sum of its proper divisors (71040777380085).

213122332140243 is an equidigital number, since it uses as much as digits as its factorization.

213122332140243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71040777380084.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 213122332140243 its reverse (342041233221312), we get a palindrome (555163565361555).

The spelling of 213122332140243 in words is "two hundred thirteen trillion, one hundred twenty-two billion, three hundred thirty-two million, one hundred forty thousand, two hundred forty-three".