20103243007 has 2 divisors, whose sum is σ = 20103243008. Its totient is φ = 20103243006.

The previous prime is 20103242941. The next prime is 20103243011. The reversal of 20103243007 is 70034230102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20103243007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20103243077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051621503 + 10051621504.

It is an arithmetic number, because the mean of its divisors is an integer number (10051621504).

Almost surely, 2^20103243007 is an apocalyptic number.

20103243007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103243007 is an equidigital number, since it uses as much as digits as its factorization.

20103243007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

Adding to 20103243007 its reverse (70034230102), we get a palindrome (90137473109).

The spelling of 20103243007 in words is "twenty billion, one hundred three million, two hundred forty-three thousand, seven".