653201324123 has 4 divisors (see below), whose sum is σ = 653203822488. Its totient is φ = 653198825760.

The previous prime is 653201324119. The next prime is 653201324129. The reversal of 653201324123 is 321423102356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 653201324123 - 2² = 653201324119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653201324123.

It is not an unprimeable number, because it can be changed into a prime (653201324129) 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 3 ways as a sum of consecutive naturals, for example, 804158 + ... + 1397523.

It is an arithmetic number, because the mean of its divisors is an integer number (163300955622).

Almost surely, 2^653201324123 is an apocalyptic number.

653201324123 is a deficient number, since it is larger than the sum of its proper divisors (2498365).

653201324123 is a wasteful number, since it uses less digits than its factorization.

653201324123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498364.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 653201324123 its reverse (321423102356), we get a palindrome (974624426479).

The spelling of 653201324123 in words is "six hundred fifty-three billion, two hundred one million, three hundred twenty-four thousand, one hundred twenty-three".