121002303 has 4 divisors (see below), whose sum is σ = 161336408. Its totient is φ = 80668200.

The previous prime is 121002293. The next prime is 121002337. The reversal of 121002303 is 303200121.

It is a happy number.

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

It is not a de Polignac number, because 121002303 - 2⁸ = 121002047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20167048 + ... + 20167053.

It is an arithmetic number, because the mean of its divisors is an integer number (40334102).

Almost surely, 2^121002303 is an apocalyptic number.

121002303 is a deficient number, since it is larger than the sum of its proper divisors (40334105).

121002303 is an equidigital number, since it uses as much as digits as its factorization.

121002303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40334104.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 121002303 is about 11000.1046813201. The cubic root of 121002303 is about 494.6118822772.

Adding to 121002303 its reverse (303200121), we get a palindrome (424202424).

The spelling of 121002303 in words is "one hundred twenty-one million, two thousand, three hundred three".