123202201 has 4 divisors (see below), whose sum is σ = 123512932. Its totient is φ = 122891472.

The previous prime is 123202199. The next prime is 123202217. The reversal of 123202201 is 102202321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102202321 = 13 ⋅7861717.

It can be written as a sum of positive squares in 2 ways, for example, as 83814025 + 39388176 = 9155^2 + 6276^2 .

It is a cyclic number.

It is not a de Polignac number, because 123202201 - 2¹ = 123202199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123202231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154770 + ... + 155563.

It is an arithmetic number, because the mean of its divisors is an integer number (30878233).

Almost surely, 2^123202201 is an apocalyptic number.

It is an amenable number.

123202201 is a deficient number, since it is larger than the sum of its proper divisors (310731).

123202201 is an equidigital number, since it uses as much as digits as its factorization.

123202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310730.

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

The square root of 123202201 is about 11099.6486881342. The cubic root of 123202201 is about 497.5913501101.

Adding to 123202201 its reverse (102202321), we get a palindrome (225404522).

The spelling of 123202201 in words is "one hundred twenty-three million, two hundred two thousand, two hundred one".