201023000201 has 2 divisors, whose sum is σ = 201023000202. Its totient is φ = 201023000200.

The previous prime is 201023000147. The next prime is 201023000261. The reversal of 201023000201 is 102000320102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140655001600 + 60367998601 = 375040^2 + 245699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201023000201 is a prime.

It is a super-2 number, since 2×201023000201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201023000261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100511500100 + 100511500101.

It is an arithmetic number, because the mean of its divisors is an integer number (100511500101).

Almost surely, 2^201023000201 is an apocalyptic number.

It is an amenable number.

201023000201 is a deficient number, since it is larger than the sum of its proper divisors (1).

201023000201 is an equidigital number, since it uses as much as digits as its factorization.

201023000201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 201023000201 its reverse (102000320102), we get a palindrome (303023320303).

The spelling of 201023000201 in words is "two hundred one billion, twenty-three million, two hundred one", and thus it is an aban number.