20203103162201 has 2 divisors, whose sum is σ = 20203103162202. Its totient is φ = 20203103162200.

The previous prime is 20203103162183. The next prime is 20203103162213. The reversal of 20203103162201 is 10226130130202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19178058284176 + 1025044878025 = 4379276^2 + 1012445^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203103162201 - 2²² = 20203098967897 is a prime.

It is not a weakly prime, because it can be changed into another prime (20203103192201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101551581100 + 10101551581101.

It is an arithmetic number, because the mean of its divisors is an integer number (10101551581101).

Almost surely, 2^{20203103162201} is an apocalyptic number.

It is an amenable number.

20203103162201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203103162201 is an equidigital number, since it uses as much as digits as its factorization.

20203103162201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20203103162201 its reverse (10226130130202), we get a palindrome (30429233292403).

The spelling of 20203103162201 in words is "twenty trillion, two hundred three billion, one hundred three million, one hundred sixty-two thousand, two hundred one".