20101322013 has 4 divisors (see below), whose sum is σ = 26801762688. Its totient is φ = 13400881340.

The previous prime is 20101322011. The next prime is 20101322057. The reversal of 20101322013 is 31022310102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20101322013 - 2¹ = 20101322011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20101321983 and 20101322001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101322011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350220333 + ... + 3350220338.

It is an arithmetic number, because the mean of its divisors is an integer number (6700440672).

Almost surely, 2^20101322013 is an apocalyptic number.

It is an amenable number.

20101322013 is a deficient number, since it is larger than the sum of its proper divisors (6700440675).

20101322013 is an equidigital number, since it uses as much as digits as its factorization.

20101322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700440674.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20101322013 its reverse (31022310102), we get a palindrome (51123632115).

The spelling of 20101322013 in words is "twenty billion, one hundred one million, three hundred twenty-two thousand, thirteen".