121316126 has 8 divisors (see below), whose sum is σ = 182323704. Its totient is φ = 60541560.

The previous prime is 121316123. The next prime is 121316137. The reversal of 121316126 is 621613121.

It is a sphenic number, since it is the product of 3 distinct 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 (121316123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56945 + ... + 59036.

It is an arithmetic number, because the mean of its divisors is an integer number (22790463).

Almost surely, 2^121316126 is an apocalyptic number.

121316126 is a deficient number, since it is larger than the sum of its proper divisors (61007578).

121316126 is a wasteful number, since it uses less digits than its factorization.

121316126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116506.

The product of its digits is 432, while the sum is 23.

The square root of 121316126 is about 11014.3599904851. The cubic root of 121316126 is about 495.0391099255.

Adding to 121316126 its reverse (621613121), we get a palindrome (742929247).

The spelling of 121316126 in words is "one hundred twenty-one million, three hundred sixteen thousand, one hundred twenty-six".