2131344441204 has 48 divisors (see below), whose sum is σ = 5436380683776. Its totient is φ = 644535727200.

The previous prime is 2131344441197. The next prime is 2131344441251. The reversal of 2131344441204 is 4021444431312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16513282 + ... + 16641849.

It is an arithmetic number, because the mean of its divisors is an integer number (113257930912).

Almost surely, 2^{2131344441204} is an apocalyptic number.

It is an amenable number.

2131344441204 is an abundant number, since it is smaller than the sum of its proper divisors (3305036242572).

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

2131344441204 is a wasteful number, since it uses less digits than its factorization.

2131344441204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33155636 (or 33155634 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 2131344441204 its reverse (4021444431312), we get a palindrome (6152788872516).

The spelling of 2131344441204 in words is "two trillion, one hundred thirty-one billion, three hundred forty-four million, four hundred forty-one thousand, two hundred four".