123201211 has 8 divisors (see below), whose sum is σ = 142584320. Its totient is φ = 104263848.

The previous prime is 123201167. The next prime is 123201233. The reversal of 123201211 is 112102321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123201211 - 2⁹ = 123200699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123201191 and 123201200.

It is not an unprimeable number, because it can be changed into a prime (123201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110841 + ... + 111946.

It is an arithmetic number, because the mean of its divisors is an integer number (17823040).

Almost surely, 2^123201211 is an apocalyptic number.

123201211 is a deficient number, since it is larger than the sum of its proper divisors (19383109).

123201211 is an equidigital number, since it uses as much as digits as its factorization.

123201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222873.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 123201211 is about 11099.6040920386. The cubic root of 123201211 is about 497.5900172964.

Adding to 123201211 its reverse (112102321), we get a palindrome (235303532).

It can be divided in two parts, 12320 and 1211, that added together give a palindrome (13531).

The spelling of 123201211 in words is "one hundred twenty-three million, two hundred one thousand, two hundred eleven".