2131313323141 has 4 divisors (see below), whose sum is σ = 2131489462284. Its totient is φ = 2131137184000.

The previous prime is 2131313323123. The next prime is 2131313323169. The reversal of 2131313323141 is 1413233131312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1815632282116 + 315681041025 = 1347454^2 + 561855^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131313323141 - 2⁹ = 2131313322629 is a prime.

It is a super-2 number, since 2×2131313323141² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131313323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88051420 + ... + 88075621.

It is an arithmetic number, because the mean of its divisors is an integer number (532872365571).

Almost surely, 2^{2131313323141} is an apocalyptic number.

It is an amenable number.

2131313323141 is a deficient number, since it is larger than the sum of its proper divisors (176139143).

2131313323141 is a wasteful number, since it uses less digits than its factorization.

2131313323141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176139142.

The product of its digits is 3888, while the sum is 28.

Adding to 2131313323141 its reverse (1413233131312), we get a palindrome (3544546454453).

The spelling of 2131313323141 in words is "two trillion, one hundred thirty-one billion, three hundred thirteen million, three hundred twenty-three thousand, one hundred forty-one".