2131443113 has 2 divisors, whose sum is σ = 2131443114. Its totient is φ = 2131443112.

The previous prime is 2131443101. The next prime is 2131443173. The reversal of 2131443113 is 3113441312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2087393344 + 44049769 = 45688^2 + 6637^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131443113 - 2¹⁴ = 2131426729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131443173) 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 as a sum of consecutive naturals, namely, 1065721556 + 1065721557.

It is an arithmetic number, because the mean of its divisors is an integer number (1065721557).

Almost surely, 2^2131443113 is an apocalyptic number.

It is an amenable number.

2131443113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131443113 is an equidigital number, since it uses as much as digits as its factorization.

2131443113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 2131443113 is about 46167.5547652245. The cubic root of 2131443113 is about 1286.9388613624.

Adding to 2131443113 its reverse (3113441312), we get a palindrome (5244884425).

The spelling of 2131443113 in words is "two billion, one hundred thirty-one million, four hundred forty-three thousand, one hundred thirteen".