121242883 has 4 divisors (see below), whose sum is σ = 122045968. Its totient is φ = 120439800.

The previous prime is 121242871. The next prime is 121242899. The reversal of 121242883 is 388242121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 388242121 = 383 ⋅1013687.

It is a cyclic number.

It is not a de Polignac number, because 121242883 - 2⁵ = 121242851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121242833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401316 + ... + 401617.

It is an arithmetic number, because the mean of its divisors is an integer number (30511492).

Almost surely, 2^121242883 is an apocalyptic number.

121242883 is a deficient number, since it is larger than the sum of its proper divisors (803085).

121242883 is an equidigital number, since it uses as much as digits as its factorization.

121242883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803084.

The product of its digits is 6144, while the sum is 31.

The square root of 121242883 is about 11011.0346017075. The cubic root of 121242883 is about 494.9394654403.

The spelling of 121242883 in words is "one hundred twenty-one million, two hundred forty-two thousand, eight hundred eighty-three".