20313023231101 has 4 divisors (see below), whose sum is σ = 20313306367804. Its totient is φ = 20312740094400.

The previous prime is 20313023231099. The next prime is 20313023231113. The reversal of 20313023231101 is 10113232031302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13070864083225 + 7242159147876 = 3615365^2 + 2691126^2 .

It is a cyclic number.

It is not a de Polignac number, because 20313023231101 - 2¹ = 20313023231099 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 (20313023231141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141460710 + ... + 141604231.

It is an arithmetic number, because the mean of its divisors is an integer number (5078326591951).

Almost surely, 2^{20313023231101} is an apocalyptic number.

It is an amenable number.

20313023231101 is a deficient number, since it is larger than the sum of its proper divisors (283136703).

20313023231101 is an equidigital number, since it uses as much as digits as its factorization.

20313023231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283136702.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20313023231101 its reverse (10113232031302), we get a palindrome (30426255262403).

The spelling of 20313023231101 in words is "twenty trillion, three hundred thirteen billion, twenty-three million, two hundred thirty-one thousand, one hundred one".