20321001313113 has 16 divisors (see below), whose sum is σ = 27100959120576. Its totient is φ = 13544189245440.

The previous prime is 20321001313111. The next prime is 20321001313133. The reversal of 20321001313113 is 31131310012302.

It is a happy number.

It is not a de Polignac number, because 20321001313113 - 2¹ = 20321001313111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20321001313113.

It is not an unprimeable number, because it can be changed into a prime (20321001313111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260429881 + ... + 260507897.

It is an arithmetic number, because the mean of its divisors is an integer number (1693809945036).

Almost surely, 2^{20321001313113} is an apocalyptic number.

It is an amenable number.

20321001313113 is a deficient number, since it is larger than the sum of its proper divisors (6779957807463).

20321001313113 is a wasteful number, since it uses less digits than its factorization.

20321001313113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97064.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20321001313113 its reverse (31131310012302), we get a palindrome (51452311325415).

The spelling of 20321001313113 in words is "twenty trillion, three hundred twenty-one billion, one million, three hundred thirteen thousand, one hundred thirteen".