213143244005 has 4 divisors (see below), whose sum is σ = 255771892812. Its totient is φ = 170514595200.

The previous prime is 213143243969. The next prime is 213143244019. The reversal of 213143244005 is 500442341312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23102176036 + 190041067969 = 151994^2 + 435937^2 .

It is not a de Polignac number, because 213143244005 - 2⁶ = 213143243941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21314324396 + ... + 21314324405.

It is an arithmetic number, because the mean of its divisors is an integer number (63942973203).

Almost surely, 2^213143244005 is an apocalyptic number.

It is an amenable number.

213143244005 is a deficient number, since it is larger than the sum of its proper divisors (42628648807).

213143244005 is an equidigital number, since it uses as much as digits as its factorization.

213143244005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42628648806.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 213143244005 its reverse (500442341312), we get a palindrome (713585585317).

The spelling of 213143244005 in words is "two hundred thirteen billion, one hundred forty-three million, two hundred forty-four thousand, five".