201230211101 has 2 divisors, whose sum is σ = 201230211102. Its totient is φ = 201230211100.

The previous prime is 201230211073. The next prime is 201230211107. The reversal of 201230211101 is 101112032102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197660268100 + 3569943001 = 444590^2 + 59749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201230211101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201230211107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615105550 + 100615105551.

It is an arithmetic number, because the mean of its divisors is an integer number (100615105551).

Almost surely, 2^201230211101 is an apocalyptic number.

It is an amenable number.

201230211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201230211101 is an equidigital number, since it uses as much as digits as its factorization.

201230211101 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 14.

Adding to 201230211101 its reverse (101112032102), we get a palindrome (302342243203).

The spelling of 201230211101 in words is "two hundred one billion, two hundred thirty million, two hundred eleven thousand, one hundred one".