121352305 has 8 divisors (see below), whose sum is σ = 146601000. Its totient is φ = 96429696.

The previous prime is 121352303. The next prime is 121352311. The reversal of 121352305 is 503253121.

It can be written as a sum of positive squares in 4 ways, for example, as 49 + 121352256 = 7^2 + 11016^2 .

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 121352305 - 2¹ = 121352303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121352303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80700 + ... + 82189.

It is an arithmetic number, because the mean of its divisors is an integer number (18325125).

Almost surely, 2^121352305 is an apocalyptic number.

It is an amenable number.

121352305 is a deficient number, since it is larger than the sum of its proper divisors (25248695).

121352305 is a wasteful number, since it uses less digits than its factorization.

121352305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163043.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 121352305 is about 11016.0022240375. The cubic root of 121352305 is about 495.0883153650.

The spelling of 121352305 in words is "one hundred twenty-one million, three hundred fifty-two thousand, three hundred five".