20313313203021 has 32 divisors (see below), whose sum is σ = 27564917328000. Its totient is φ = 13302320378880.

The previous prime is 20313313203019. The next prime is 20313313203023. The reversal of 20313313203021 is 12030231331302.

It is an interprime number because it is at equal distance from previous prime (20313313203019) and next prime (20313313203023).

It is not a de Polignac number, because 20313313203021 - 2¹ = 20313313203019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20313313202982 and 20313313203000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313313203023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2194368625 + ... + 2194377881.

It is an arithmetic number, because the mean of its divisors is an integer number (861403666500).

Almost surely, 2^{20313313203021} is an apocalyptic number.

It is an amenable number.

20313313203021 is a deficient number, since it is larger than the sum of its proper divisors (7251604124979).

20313313203021 is a wasteful number, since it uses less digits than its factorization.

20313313203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17629.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20313313203021 its reverse (12030231331302), we get a palindrome (32343544534323).

The spelling of 20313313203021 in words is "twenty trillion, three hundred thirteen billion, three hundred thirteen million, two hundred three thousand, twenty-one".