2131001003 has 2 divisors, whose sum is σ = 2131001004. Its totient is φ = 2131001002.

The previous prime is 2131000987. The next prime is 2131001027. The reversal of 2131001003 is 3001001312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131001003 - 2⁴ = 2131000987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131001203) 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, 1065500501 + 1065500502.

It is an arithmetic number, because the mean of its divisors is an integer number (1065500502).

Almost surely, 2^2131001003 is an apocalyptic number.

2131001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131001003 is an equidigital number, since it uses as much as digits as its factorization.

2131001003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2131001003 is about 46162.7664140701. The cubic root of 2131001003 is about 1286.8498750351.

Adding to 2131001003 its reverse (3001001312), we get a palindrome (5132002315).

The spelling of 2131001003 in words is "two billion, one hundred thirty-one million, one thousand, three".