2131003251 has 12 divisors (see below), whose sum is σ = 3314894128. Its totient is φ = 1311386544.

The previous prime is 2131003247. The next prime is 2131003253. The reversal of 2131003251 is 1523001312.

It is not a de Polignac number, because 2131003251 - 2² = 2131003247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131003253) 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 in 11 ways as a sum of consecutive naturals, for example, 9106735 + ... + 9106968.

Almost surely, 2^2131003251 is an apocalyptic number.

2131003251 is a deficient number, since it is larger than the sum of its proper divisors (1183890877).

2131003251 is a wasteful number, since it uses less digits than its factorization.

2131003251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18213722 (or 18213719 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2131003251 is about 46162.7907626911. The cubic root of 2131003251 is about 1286.8503275357.

Adding to 2131003251 its reverse (1523001312), we get a palindrome (3654004563).

The spelling of 2131003251 in words is "two billion, one hundred thirty-one million, three thousand, two hundred fifty-one".