213242420044 has 24 divisors (see below), whose sum is σ = 375307007040. Its totient is φ = 106011999696.

The previous prime is 213242419979. The next prime is 213242420047. The reversal of 213242420044 is 440024242312.

213242420044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213242419994 and 213242420021.

It is not an unprimeable number, because it can be changed into a prime (213242420047) 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 7 ways as a sum of consecutive naturals, for example, 7853139 + ... + 7880245.

It is an arithmetic number, because the mean of its divisors is an integer number (15637791960).

Almost surely, 2^213242420044 is an apocalyptic number.

It is an amenable number.

213242420044 is a deficient number, since it is larger than the sum of its proper divisors (162064586996).

213242420044 is a wasteful number, since it uses less digits than its factorization.

213242420044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38277 (or 38275 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 213242420044 its reverse (440024242312), we get a palindrome (653266662356).

The spelling of 213242420044 in words is "two hundred thirteen billion, two hundred forty-two million, four hundred twenty thousand, forty-four".