121207304 has 8 divisors (see below), whose sum is σ = 227263710. Its totient is φ = 60603648.

The previous prime is 121207291. The next prime is 121207319. The reversal of 121207304 is 403702121.

It can be written as a sum of positive squares in only one way, i.e., 62378404 + 58828900 = 7898^2 + 7670^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7575449 + ... + 7575464.

Almost surely, 2^121207304 is an apocalyptic number.

It is an amenable number.

121207304 is a deficient number, since it is larger than the sum of its proper divisors (106056406).

121207304 is a wasteful number, since it uses less digits than its factorization.

121207304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150919 (or 15150915 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 121207304 is about 11009.4188765802. The cubic root of 121207304 is about 494.8910469996.

Adding to 121207304 its reverse (403702121), we get a palindrome (524909425).

The spelling of 121207304 in words is "one hundred twenty-one million, two hundred seven thousand, three hundred four".