213104524244 has 6 divisors (see below), whose sum is σ = 372932917434. Its totient is φ = 106552262120.

The previous prime is 213104524151. The next prime is 213104524271. The reversal of 213104524244 is 442425401312.

It can be written as a sum of positive squares in only one way, i.e., 173212451344 + 39892072900 = 416188^2 + 199730^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213104524244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26638065527 + ... + 26638065534.

It is an arithmetic number, because the mean of its divisors is an integer number (62155486239).

Almost surely, 2^213104524244 is an apocalyptic number.

It is an amenable number.

213104524244 is a deficient number, since it is larger than the sum of its proper divisors (159828393190).

213104524244 is a wasteful number, since it uses less digits than its factorization.

213104524244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53276131065 (or 53276131063 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 213104524244 its reverse (442425401312), we get a palindrome (655529925556).

The spelling of 213104524244 in words is "two hundred thirteen billion, one hundred four million, five hundred twenty-four thousand, two hundred forty-four".