2123104013212 has 96 divisors (see below), whose sum is σ = 4609041920000. Its totient is φ = 833284184832.

The previous prime is 2123104013179. The next prime is 2123104013213.

2123104013212 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123104013213) 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 31 ways as a sum of consecutive naturals, for example, 25238173 + ... + 25322155.

Almost surely, 2^{2123104013212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123104013212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304520960000).

2123104013212 is an abundant number, since it is smaller than the sum of its proper divisors (2485937906788).

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

2123104013212 is a wasteful number, since it uses less digits than its factorization.

2123104013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84555 (or 84553 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 2123104013212 in words is "two trillion, one hundred twenty-three billion, one hundred four million, thirteen thousand, two hundred twelve".