20313311101 has 8 divisors (see below), whose sum is σ = 21536194680. Its totient is φ = 19093536768.

The previous prime is 20313311099. The next prime is 20313311111. The reversal of 20313311101 is 10111331302.

It can be written as a sum of positive squares in 4 ways, for example, as 5288925625 + 15024385476 = 72725^2 + 122574^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20313311101 - 2¹ = 20313311099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313311111) 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 7 ways as a sum of consecutive naturals, for example, 763846 + ... + 789991.

It is an arithmetic number, because the mean of its divisors is an integer number (2692024335).

Almost surely, 2^20313311101 is an apocalyptic number.

It is an amenable number.

20313311101 is a deficient number, since it is larger than the sum of its proper divisors (1222883579).

20313311101 is a wasteful number, since it uses less digits than its factorization.

20313311101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554623.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20313311101 its reverse (10111331302), we get a palindrome (30424642403).

The spelling of 20313311101 in words is "twenty billion, three hundred thirteen million, three hundred eleven thousand, one hundred one".