20001031007 has 2 divisors, whose sum is σ = 20001031008. Its totient is φ = 20001031006.

The previous prime is 20001030949. The next prime is 20001031013. The reversal of 20001031007 is 70013010002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001031007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20001030982 and 20001031000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001031907) 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, 10000515503 + 10000515504.

It is an arithmetic number, because the mean of its divisors is an integer number (10000515504).

Almost surely, 2^20001031007 is an apocalyptic number.

20001031007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001031007 is an equidigital number, since it uses as much as digits as its factorization.

20001031007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 14.

Adding to 20001031007 its reverse (70013010002), we get a palindrome (90014041009).

The spelling of 20001031007 in words is "twenty billion, one million, thirty-one thousand, seven".