213132431324413 has 4 divisors (see below), whose sum is σ = 214408673428320. Its totient is φ = 211856189220508.

The previous prime is 213132431324363. The next prime is 213132431324431. The reversal of 213132431324413 is 314423134231312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213132431324413 - 2²⁵ = 213132397769981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213132431324513) 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, 638121051703 + ... + 638121052036.

It is an arithmetic number, because the mean of its divisors is an integer number (53602168357080).

Almost surely, 2^{213132431324413} is an apocalyptic number.

It is an amenable number.

213132431324413 is a deficient number, since it is larger than the sum of its proper divisors (1276242103907).

213132431324413 is a wasteful number, since it uses less digits than its factorization.

213132431324413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276242103906.

The product of its digits is 124416, while the sum is 37.

Adding to 213132431324413 its reverse (314423134231312), we get a palindrome (527555565555725).

The spelling of 213132431324413 in words is "two hundred thirteen trillion, one hundred thirty-two billion, four hundred thirty-one million, three hundred twenty-four thousand, four hundred thirteen".