2131203149 has 2 divisors, whose sum is σ = 2131203150. Its totient is φ = 2131203148.

The previous prime is 2131203091. The next prime is 2131203157. The reversal of 2131203149 is 9413021312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1530217924 + 600985225 = 39118^2 + 24515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131203149 - 2²⁸ = 1862767693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131203049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065601574 + 1065601575.

It is an arithmetic number, because the mean of its divisors is an integer number (1065601575).

Almost surely, 2^2131203149 is an apocalyptic number.

It is an amenable number.

2131203149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131203149 is an equidigital number, since it uses as much as digits as its factorization.

2131203149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2131203149 is about 46164.9558539808. The cubic root of 2131203149 is about 1286.8905637896.

The spelling of 2131203149 in words is "two billion, one hundred thirty-one million, two hundred three thousand, one hundred forty-nine".