2131443101 has 2 divisors, whose sum is σ = 2131443102. Its totient is φ = 2131443100.

The previous prime is 2131443089. The next prime is 2131443113. The reversal of 2131443101 is 1013441312.

It is a balanced prime because it is at equal distance from previous prime (2131443089) and next prime (2131443113).

It can be written as a sum of positive squares in only one way, i.e., 1711807876 + 419635225 = 41374^2 + 20485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131443101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131443701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065721550 + 1065721551.

It is an arithmetic number, because the mean of its divisors is an integer number (1065721551).

Almost surely, 2^2131443101 is an apocalyptic number.

It is an amenable number.

2131443101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131443101 is an equidigital number, since it uses as much as digits as its factorization.

2131443101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2131443101 is about 46167.5546352631. The cubic root of 2131443101 is about 1286.9388589473.

Adding to 2131443101 its reverse (1013441312), we get a palindrome (3144884413).

The spelling of 2131443101 in words is "two billion, one hundred thirty-one million, four hundred forty-three thousand, one hundred one".