213242120403423 has 8 divisors (see below), whose sum is σ = 299287186531200. Its totient is φ = 134679233938968.

The previous prime is 213242120403419. The next prime is 213242120403437. The reversal of 213242120403423 is 324304021242312.

It is a happy number.

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

It is not a de Polignac number, because 213242120403423 - 2² = 213242120403419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213242120401423) 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, 1870544915763 + ... + 1870544915876.

It is an arithmetic number, because the mean of its divisors is an integer number (37410898316400).

Almost surely, 2^{213242120403423} is an apocalyptic number.

213242120403423 is a deficient number, since it is larger than the sum of its proper divisors (86045066127777).

213242120403423 is a wasteful number, since it uses less digits than its factorization.

213242120403423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741089831661.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 213242120403423 its reverse (324304021242312), we get a palindrome (537546141645735).

The spelling of 213242120403423 in words is "two hundred thirteen trillion, two hundred forty-two billion, one hundred twenty million, four hundred three thousand, four hundred twenty-three".