20310326551120 has 80 divisors (see below), whose sum is σ = 48557184141312. Its totient is φ = 7895843947520.

The previous prime is 20310326551111. The next prime is 20310326551129. The reversal of 20310326551120 is 2115562301302.

It is an interprime number because it is at equal distance from previous prime (20310326551111) and next prime (20310326551129).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×20310326551120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310326551129) 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, 10909552 + ... + 12634831.

Almost surely, 2^{20310326551120} is an apocalyptic number.

20310326551120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310326551120 is an abundant number, since it is smaller than the sum of its proper divisors (28246857590192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20310326551120 is a wasteful number, since it uses less digits than its factorization.

20310326551120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23544700 (or 23544694 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 20310326551120 its reverse (2115562301302), we get a palindrome (22425888852422).

The spelling of 20310326551120 in words is "twenty trillion, three hundred ten billion, three hundred twenty-six million, five hundred fifty-one thousand, one hundred twenty".