2131434400443 has 4 divisors (see below), whose sum is σ = 2841912533928. Its totient is φ = 1420956266960.

The previous prime is 2131434400441. The next prime is 2131434400471. The reversal of 2131434400443 is 3440044341312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131434400443 - 2¹ = 2131434400441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131434400441) 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 3 ways as a sum of consecutive naturals, for example, 355239066738 + ... + 355239066743.

It is an arithmetic number, because the mean of its divisors is an integer number (710478133482).

Almost surely, 2^{2131434400443} is an apocalyptic number.

2131434400443 is a deficient number, since it is larger than the sum of its proper divisors (710478133485).

2131434400443 is an equidigital number, since it uses as much as digits as its factorization.

2131434400443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710478133484.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 2131434400443 its reverse (3440044341312), we get a palindrome (5571478741755).

The spelling of 2131434400443 in words is "two trillion, one hundred thirty-one billion, four hundred thirty-four million, four hundred thousand, four hundred forty-three".