121142303 has 4 divisors (see below), whose sum is σ = 121195200. Its totient is φ = 121089408.

The previous prime is 121142293. The next prime is 121142321. The reversal of 121142303 is 303241121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121142303 - 2¹⁴ = 121125919 is a prime.

It is a super-3 number, since 3×121142303³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121142353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22850 + ... + 27647.

It is an arithmetic number, because the mean of its divisors is an integer number (30298800).

Almost surely, 2^121142303 is an apocalyptic number.

121142303 is a deficient number, since it is larger than the sum of its proper divisors (52897).

121142303 is an equidigital number, since it uses as much as digits as its factorization.

121142303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52896.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121142303 is about 11006.4664175202. The cubic root of 121142303 is about 494.8025645291.

Adding to 121142303 its reverse (303241121), we get a palindrome (424383424).

The spelling of 121142303 in words is "one hundred twenty-one million, one hundred forty-two thousand, three hundred three".