213122403410144 has 48 divisors (see below), whose sum is σ = 420968612937600. Its totient is φ = 106209796364160.

The previous prime is 213122403410131. The next prime is 213122403410153. The reversal of 213122403410144 is 441014304221312.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 213122403410144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120566807 + ... + 122321705.

It is an arithmetic number, because the mean of its divisors is an integer number (8770179436200).

Almost surely, 2^{213122403410144} is an apocalyptic number.

It is an amenable number.

213122403410144 is a deficient number, since it is larger than the sum of its proper divisors (207846209527456).

213122403410144 is a wasteful number, since it uses less digits than its factorization.

213122403410144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767423 (or 1767415 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 213122403410144 its reverse (441014304221312), we get a palindrome (654136707631456).

The spelling of 213122403410144 in words is "two hundred thirteen trillion, one hundred twenty-two billion, four hundred three million, four hundred ten thousand, one hundred forty-four".