2131343101 has 2 divisors, whose sum is σ = 2131343102. Its totient is φ = 2131343100.

The previous prime is 2131343087. The next prime is 2131343119. The reversal of 2131343101 is 1013431312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2129730201 + 1612900 = 46149^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131343101 - 2⁹ = 2131342589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131343141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065671550 + 1065671551.

It is an arithmetic number, because the mean of its divisors is an integer number (1065671551).

Almost surely, 2^2131343101 is an apocalyptic number.

It is an amenable number.

2131343101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131343101 is an equidigital number, since it uses as much as digits as its factorization.

2131343101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2131343101 is about 46166.4716108996. The cubic root of 2131343101 is about 1286.9187323801.

Adding to 2131343101 its reverse (1013431312), we get a palindrome (3144774413).

The spelling of 2131343101 in words is "two billion, one hundred thirty-one million, three hundred forty-three thousand, one hundred one".