213313422431 has 4 divisors (see below), whose sum is σ = 213436513272. Its totient is φ = 213190331592.

The previous prime is 213313422407. The next prime is 213313422437. The reversal of 213313422431 is 134224313312.

213313422431 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 213313422431 - 2³⁴ = 196133553247 is a prime.

It is a super-3 number, since 3×213313422431³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213313422394 and 213313422403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213313422437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61542821 + ... + 61546286.

It is an arithmetic number, because the mean of its divisors is an integer number (53359128318).

Almost surely, 2^213313422431 is an apocalyptic number.

213313422431 is a deficient number, since it is larger than the sum of its proper divisors (123090841).

213313422431 is a wasteful number, since it uses less digits than its factorization.

213313422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123090840.

The product of its digits is 10368, while the sum is 29.

Adding to 213313422431 its reverse (134224313312), we get a palindrome (347537735743).

The spelling of 213313422431 in words is "two hundred thirteen billion, three hundred thirteen million, four hundred twenty-two thousand, four hundred thirty-one".