121310221010303 has 8 divisors (see below), whose sum is σ = 132109661602800. Its totient is φ = 110720478293568.

The previous prime is 121310221010291. The next prime is 121310221010317. The reversal of 121310221010303 is 303010122013121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121310221010303 - 2⁴ = 121310221010287 is a prime.

It is a super-3 number, since 3×121310221010303³ (a number of 43 digits) contains 333 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 (121310221010003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52424467733 + ... + 52424470046.

It is an arithmetic number, because the mean of its divisors is an integer number (16513707700350).

Almost surely, 2^{121310221010303} is an apocalyptic number.

121310221010303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121310221010303 is a deficient number, since it is larger than the sum of its proper divisors (10799440592497).

121310221010303 is a wasteful number, since it uses less digits than its factorization.

121310221010303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104848937881.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121310221010303 its reverse (303010122013121), we get a palindrome (424320343023424).

The spelling of 121310221010303 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred twenty-one million, ten thousand, three hundred three".