2112103430320 has 160 divisors (see below), whose sum is σ = 5498833052160. Its totient is φ = 749186703360.

The previous prime is 2112103430309. The next prime is 2112103430347. The reversal of 2112103430320 is 230343012112.

It is a super-2 number, since 2×2112103430320² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112103430291 and 2112103430300.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4177786 + ... + 4655974.

It is an arithmetic number, because the mean of its divisors is an integer number (34367706576).

Almost surely, 2^{2112103430320} is an apocalyptic number.

2112103430320 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 2112103430320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2749416526080).

2112103430320 is an abundant number, since it is smaller than the sum of its proper divisors (3386729621840).

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

2112103430320 is a wasteful number, since it uses less digits than its factorization.

2112103430320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478383 (or 478377 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2112103430320 its reverse (230343012112), we get a palindrome (2342446442432).

The spelling of 2112103430320 in words is "two trillion, one hundred twelve billion, one hundred three million, four hundred thirty thousand, three hundred twenty".