213242123004 has 12 divisors (see below), whose sum is σ = 497564953704. Its totient is φ = 71080707664.

The previous prime is 213242122987. The next prime is 213242123023. The reversal of 213242123004 is 400321242312.

It is a happy number.

213242123004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 8885088447 + ... + 8885088470.

It is an arithmetic number, because the mean of its divisors is an integer number (41463746142).

Almost surely, 2^213242123004 is an apocalyptic number.

It is an amenable number.

213242123004 is an abundant number, since it is smaller than the sum of its proper divisors (284322830700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213242123004 is a wasteful number, since it uses less digits than its factorization.

213242123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17770176924 (or 17770176922 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 213242123004 its reverse (400321242312), we get a palindrome (613563365316).

The spelling of 213242123004 in words is "two hundred thirteen billion, two hundred forty-two million, one hundred twenty-three thousand, four".