2131343104411 has 4 divisors (see below), whose sum is σ = 2142501969024. Its totient is φ = 2120184239800.

The previous prime is 2131343104393. The next prime is 2131343104427. The reversal of 2131343104411 is 1144013431312.

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 2131343104411 - 2¹¹ = 2131343102363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131343104411.

It is not an unprimeable number, because it can be changed into a prime (2131343101411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5579432020 + ... + 5579432401.

It is an arithmetic number, because the mean of its divisors is an integer number (535625492256).

Almost surely, 2^{2131343104411} is an apocalyptic number.

2131343104411 is a deficient number, since it is larger than the sum of its proper divisors (11158864613).

2131343104411 is a wasteful number, since it uses less digits than its factorization.

2131343104411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11158864612.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 2131343104411 its reverse (1144013431312), we get a palindrome (3275356535723).

The spelling of 2131343104411 in words is "two trillion, one hundred thirty-one billion, three hundred forty-three million, one hundred four thousand, four hundred eleven".