121508363 has 8 divisors (see below), whose sum is σ = 128005200. Its totient is φ = 115021728.

The previous prime is 121508357. The next prime is 121508371. The reversal of 121508363 is 363805121.

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 121508363 - 2¹⁸ = 121246219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121508063) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 42173 + ... + 44961.

It is an arithmetic number, because the mean of its divisors is an integer number (16000650).

Almost surely, 2^121508363 is an apocalyptic number.

121508363 is a deficient number, since it is larger than the sum of its proper divisors (6496837).

121508363 is a wasteful number, since it uses less digits than its factorization.

121508363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 121508363 is about 11023.0831893804. The cubic root of 121508363 is about 495.3004508667.

The spelling of 121508363 in words is "one hundred twenty-one million, five hundred eight thousand, three hundred sixty-three".