20310123300100 has 144 divisors (see below), whose sum is σ = 49220052840000. Its totient is φ = 7229212139520.

The previous prime is 20310123300031. The next prime is 20310123300109. The reversal of 20310123300100 is 100332101302.

It is a super-2 number, since 2×20310123300100² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20310123300109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15487644 + ... + 16747756.

It is an arithmetic number, because the mean of its divisors is an integer number (341805922500).

Almost surely, 2^{20310123300100} is an apocalyptic number.

20310123300100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20310123300100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24610026420000).

20310123300100 is an abundant number, since it is smaller than the sum of its proper divisors (28909929539900).

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

20310123300100 is a wasteful number, since it uses less digits than its factorization.

20310123300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260662 (or 1260655 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20310123300100 its reverse (100332101302), we get a palindrome (20410455401402).

The spelling of 20310123300100 in words is "twenty trillion, three hundred ten billion, one hundred twenty-three million, three hundred thousand, one hundred".