121121003303 has 4 divisors (see below), whose sum is σ = 122654180640. Its totient is φ = 119587825968.

The previous prime is 121121003243. The next prime is 121121003321. The reversal of 121121003303 is 303300121121.

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 121121003303 - 2⁶ = 121121003239 is a prime.

It is a super-2 number, since 2×121121003303² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121033303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766588550 + ... + 766588707.

It is an arithmetic number, because the mean of its divisors is an integer number (30663545160).

Almost surely, 2^121121003303 is an apocalyptic number.

121121003303 is a deficient number, since it is larger than the sum of its proper divisors (1533177337).

121121003303 is an equidigital number, since it uses as much as digits as its factorization.

121121003303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533177336.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121121003303 its reverse (303300121121), we get a palindrome (424421124424).

The spelling of 121121003303 in words is "one hundred twenty-one billion, one hundred twenty-one million, three thousand, three hundred three".