20403102001 has 2 divisors, whose sum is σ = 20403102002. Its totient is φ = 20403102000.

The previous prime is 20403101977. The next prime is 20403102053. The reversal of 20403102001 is 10020130402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14252778225 + 6150323776 = 119385^2 + 78424^2 .

It is a cyclic number.

It is not a de Polignac number, because 20403102001 - 2⁹ = 20403101489 is a prime.

It is not a weakly prime, because it can be changed into another prime (20403102901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201551000 + 10201551001.

It is an arithmetic number, because the mean of its divisors is an integer number (10201551001).

Almost surely, 2^20403102001 is an apocalyptic number.

It is an amenable number.

20403102001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20403102001 is an equidigital number, since it uses as much as digits as its factorization.

20403102001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20403102001 its reverse (10020130402), we get a palindrome (30423232403).

The spelling of 20403102001 in words is "twenty billion, four hundred three million, one hundred two thousand, one".