213135253423 has 8 divisors (see below), whose sum is σ = 224449110000. Its totient is φ = 201831018048.

The previous prime is 213135253421. The next prime is 213135253439. The reversal of 213135253423 is 324352531312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213135253423 - 2¹ = 213135253421 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 (213135253421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359798 + ... + 2448451.

It is an arithmetic number, because the mean of its divisors is an integer number (28056138750).

Almost surely, 2^213135253423 is an apocalyptic number.

213135253423 is a deficient number, since it is larger than the sum of its proper divisors (11313856577).

213135253423 is a wasteful number, since it uses less digits than its factorization.

213135253423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810601.

The product of its digits is 64800, while the sum is 34.

Adding to 213135253423 its reverse (324352531312), we get a palindrome (537487784735).

The spelling of 213135253423 in words is "two hundred thirteen billion, one hundred thirty-five million, two hundred fifty-three thousand, four hundred twenty-three".