2112400231004 has 108 divisors (see below), whose sum is σ = 4462613505000. Its totient is φ = 871334122176.

The previous prime is 2112400231001. The next prime is 2112400231027. The reversal of 2112400231004 is 4001320042112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112400231001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2447740277 + ... + 2447741139.

Almost surely, 2^{2112400231004} 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 2112400231004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2231306752500).

2112400231004 is an abundant number, since it is smaller than the sum of its proper divisors (2350213273996).

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

2112400231004 is an equidigital number, since it uses as much as digits as its factorization.

2112400231004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2112400231004 its reverse (4001320042112), we get a palindrome (6113720273116).

The spelling of 2112400231004 in words is "two trillion, one hundred twelve billion, four hundred million, two hundred thirty-one thousand, four".