121200333303 has 16 divisors (see below), whose sum is σ = 185112763136. Its totient is φ = 69097380480.

The previous prime is 121200333263. The next prime is 121200333313. The reversal of 121200333303 is 303333002121.

It is not a de Polignac number, because 121200333303 - 2¹⁸ = 121200071159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 121200333303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200333313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6655393 + ... + 6673578.

It is an arithmetic number, because the mean of its divisors is an integer number (11569547696).

Almost surely, 2^121200333303 is an apocalyptic number.

121200333303 is a deficient number, since it is larger than the sum of its proper divisors (63912429833).

121200333303 is a wasteful number, since it uses less digits than its factorization.

121200333303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13329414.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 121200333303 its reverse (303333002121), we get a palindrome (424533335424).

The spelling of 121200333303 in words is "one hundred twenty-one billion, two hundred million, three hundred thirty-three thousand, three hundred three".