20113100030320 has 40 divisors (see below), whose sum is σ = 51014135533680. Its totient is φ = 7313854556160.

The previous prime is 20113100030297. The next prime is 20113100030327. The reversal of 20113100030320 is 2303000131102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20113100030294 and 20113100030303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113100030327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11427896865 + ... + 11427898624.

It is an arithmetic number, because the mean of its divisors is an integer number (1275353388342).

Almost surely, 2^{20113100030320} is an apocalyptic number.

20113100030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113100030320 is an abundant number, since it is smaller than the sum of its proper divisors (30901035503360).

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

20113100030320 is a wasteful number, since it uses less digits than its factorization.

20113100030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22855795513 (or 22855795507 counting only the distinct ones).

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

Adding to 20113100030320 its reverse (2303000131102), we get a palindrome (22416100161422).

The spelling of 20113100030320 in words is "twenty trillion, one hundred thirteen billion, one hundred million, thirty thousand, three hundred twenty".