213144244413 has 16 divisors (see below), whose sum is σ = 299167865280. Its totient is φ = 134609295744.

The previous prime is 213144244409. The next prime is 213144244429. The reversal of 213144244413 is 314442441312.

It is a happy number.

It is not a de Polignac number, because 213144244413 - 2² = 213144244409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213144244463) 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, 922945 + ... + 1130537.

It is an arithmetic number, because the mean of its divisors is an integer number (18697991580).

Almost surely, 2^213144244413 is an apocalyptic number.

It is an amenable number.

213144244413 is a deficient number, since it is larger than the sum of its proper divisors (86023620867).

213144244413 is a wasteful number, since it uses less digits than its factorization.

213144244413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225628.

The product of its digits is 36864, while the sum is 33.

Adding to 213144244413 its reverse (314442441312), we get a palindrome (527586685725).

The spelling of 213144244413 in words is "two hundred thirteen billion, one hundred forty-four million, two hundred forty-four thousand, four hundred thirteen".