121326206 has 4 divisors (see below), whose sum is σ = 181989312. Its totient is φ = 60663102.

The previous prime is 121326203. The next prime is 121326211. The reversal of 121326206 is 602623121.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121326203) 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 as a sum of consecutive naturals, namely, 30331550 + ... + 30331553.

It is an arithmetic number, because the mean of its divisors is an integer number (45497328).

Almost surely, 2^121326206 is an apocalyptic number.

121326206 is a deficient number, since it is larger than the sum of its proper divisors (60663106).

121326206 is an equidigital number, since it uses as much as digits as its factorization.

121326206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60663105.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 121326206 is about 11014.8175654434. The cubic root of 121326206 is about 495.0528202656.

Adding to 121326206 its reverse (602623121), we get a palindrome (723949327).

The spelling of 121326206 in words is "one hundred twenty-one million, three hundred twenty-six thousand, two hundred six".