20203101231320 has 64 divisors (see below), whose sum is σ = 51955070760000. Its totient is φ = 6926212362240.

The previous prime is 20203101231319. The next prime is 20203101231323. The reversal of 20203101231320 is 2313210130202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20203101231292 and 20203101231301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203101231323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501056 + ... + 6376304.

It is an arithmetic number, because the mean of its divisors is an integer number (811797980625).

Almost surely, 2^{20203101231320} is an apocalyptic number.

20203101231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203101231320 is an abundant number, since it is smaller than the sum of its proper divisors (31751969528680).

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

20203101231320 is a wasteful number, since it uses less digits than its factorization.

20203101231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887548 (or 5887544 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20203101231320 its reverse (2313210130202), we get a palindrome (22516311361522).

The spelling of 20203101231320 in words is "twenty trillion, two hundred three billion, one hundred one million, two hundred thirty-one thousand, three hundred twenty".