2100320412312 has 64 divisors (see below), whose sum is σ = 5283061459200. Its totient is φ = 695806715520.

The previous prime is 2100320412271. The next prime is 2100320412341. The reversal of 2100320412312 is 2132140230012.

It is a super-2 number, since 2×2100320412312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28295487 + ... + 28369617.

It is an arithmetic number, because the mean of its divisors is an integer number (82547835300).

Almost surely, 2^{2100320412312} is an apocalyptic number.

It is an amenable number.

2100320412312 is an abundant number, since it is smaller than the sum of its proper divisors (3182741046888).

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

2100320412312 is a wasteful number, since it uses less digits than its factorization.

2100320412312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81376 (or 81372 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2100320412312 its reverse (2132140230012), we get a palindrome (4232460642324).

The spelling of 2100320412312 in words is "two trillion, one hundred billion, three hundred twenty million, four hundred twelve thousand, three hundred twelve".