121838963 has 8 divisors (see below), whose sum is σ = 128425920. Its totient is φ = 115269480.

The previous prime is 121838957. The next prime is 121838999. The reversal of 121838963 is 369838121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121838963 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121838963.

It is not an unprimeable number, because it can be changed into a prime (121838933) 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, 11456 + ... + 19362.

It is an arithmetic number, because the mean of its divisors is an integer number (16053240).

Almost surely, 2^121838963 is an apocalyptic number.

121838963 is a deficient number, since it is larger than the sum of its proper divisors (6586957).

121838963 is an equidigital number, since it uses as much as digits as its factorization.

121838963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8737.

The product of its digits is 62208, while the sum is 41.

The square root of 121838963 is about 11038.0688075406. The cubic root of 121838963 is about 495.7492486341.

The spelling of 121838963 in words is "one hundred twenty-one million, eight hundred thirty-eight thousand, nine hundred sixty-three".