213232124444 has 6 divisors (see below), whose sum is σ = 373156217784. Its totient is φ = 106616062220.

The previous prime is 213232124411. The next prime is 213232124477. The reversal of 213232124444 is 444421232312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (213232124411) and next prime (213232124477).

It is a self number, because there is not a number n which added to its sum of digits gives 213232124444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26654015552 + ... + 26654015559.

It is an arithmetic number, because the mean of its divisors is an integer number (62192702964).

Almost surely, 2^213232124444 is an apocalyptic number.

It is an amenable number.

213232124444 is a deficient number, since it is larger than the sum of its proper divisors (159924093340).

213232124444 is a wasteful number, since it uses less digits than its factorization.

213232124444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53308031115 (or 53308031113 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 213232124444 its reverse (444421232312), we get a palindrome (657653356756).

The spelling of 213232124444 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred twenty-four thousand, four hundred forty-four".