123100201 has 6 divisors (see below), whose sum is σ = 143198250. Its totient is φ = 105514416.

The previous prime is 123100171. The next prime is 123100223. The reversal of 123100201 is 102001321.

It can be written as a sum of positive squares in only one way, i.e., 113955625 + 9144576 = 10675^2 + 3024^2 .

It is not a de Polignac number, because 123100201 - 2⁵ = 123100169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123100231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1256076 + ... + 1256173.

It is an arithmetic number, because the mean of its divisors is an integer number (23866375).

Almost surely, 2^123100201 is an apocalyptic number.

It is an amenable number.

123100201 is a deficient number, since it is larger than the sum of its proper divisors (20098049).

123100201 is an equidigital number, since it uses as much as digits as its factorization.

123100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512263 (or 2512256 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 123100201 is about 11095.0529967189. The cubic root of 123100201 is about 497.4539923617.

Adding to 123100201 its reverse (102001321), we get a palindrome (225101522).

The spelling of 123100201 in words is "one hundred twenty-three million, one hundred thousand, two hundred one".