121320344 has 8 divisors (see below), whose sum is σ = 227475660. Its totient is φ = 60660168.

The previous prime is 121320319. The next prime is 121320349. The reversal of 121320344 is 443023121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7582514 + ... + 7582529.

Almost surely, 2^121320344 is an apocalyptic number.

It is an amenable number.

121320344 is a deficient number, since it is larger than the sum of its proper divisors (106155316).

121320344 is a wasteful number, since it uses less digits than its factorization.

121320344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15165049 (or 15165045 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 121320344 is about 11014.5514661288. The cubic root of 121320344 is about 495.0448471424.

Adding to 121320344 its reverse (443023121), we get a palindrome (564343465).

The spelling of 121320344 in words is "one hundred twenty-one million, three hundred twenty thousand, three hundred forty-four".