213543234440341 has 24 divisors (see below), whose sum is σ = 231332475596040. Its totient is φ = 195955507445760.

The previous prime is 213543234440317. The next prime is 213543234440351. The reversal of 213543234440341 is 143044432345312.

It can be written as a sum of positive squares in 12 ways, for example, as 170363944941316 + 43179289499025 = 13052354^2 + 6571095^2 .

It is not a de Polignac number, because 213543234440341 - 2⁷ = 213543234440213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213543234440351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1172392365 + ... + 1172574493.

It is an arithmetic number, because the mean of its divisors is an integer number (9638853149835).

Almost surely, 2^{213543234440341} is an apocalyptic number.

It is an amenable number.

213543234440341 is a deficient number, since it is larger than the sum of its proper divisors (17789241155699).

213543234440341 is a wasteful number, since it uses less digits than its factorization.

213543234440341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185257 (or 185076 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 213543234440341 its reverse (143044432345312), we get a palindrome (356587666785653).

The spelling of 213543234440341 in words is "two hundred thirteen trillion, five hundred forty-three billion, two hundred thirty-four million, four hundred forty thousand, three hundred forty-one".