2131512007 has 2 divisors, whose sum is σ = 2131512008. Its totient is φ = 2131512006.

The previous prime is 2131511927. The next prime is 2131512029. The reversal of 2131512007 is 7002151312.

It is a happy number.

It is an a-pointer prime, because the next prime (2131512029) can be obtained adding 2131512007 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131512007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131512307) 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, 1065756003 + 1065756004.

It is an arithmetic number, because the mean of its divisors is an integer number (1065756004).

Almost surely, 2^2131512007 is an apocalyptic number.

2131512007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131512007 is an equidigital number, since it uses as much as digits as its factorization.

2131512007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2131512007 is about 46168.3008892465. The cubic root of 2131512007 is about 1286.9527269934.

Adding to 2131512007 its reverse (7002151312), we get a palindrome (9133663319).

The spelling of 2131512007 in words is "two billion, one hundred thirty-one million, five hundred twelve thousand, seven".