121121003321103 has 8 divisors (see below), whose sum is σ = 161512612989616. Its totient is φ = 80738364600000.

The previous prime is 121121003321099. The next prime is 121121003321113. The reversal of 121121003321103 is 301123300121121.

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

It is not a de Polignac number, because 121121003321103 - 2² = 121121003321099 is a prime.

It is a super-3 number, since 3×121121003321103³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121121003321103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121003321113) 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, 2242705348 + ... + 2242759353.

It is an arithmetic number, because the mean of its divisors is an integer number (20189076623702).

Almost surely, 2^{121121003321103} is an apocalyptic number.

121121003321103 is a deficient number, since it is larger than the sum of its proper divisors (40391609668513).

121121003321103 is an equidigital number, since it uses as much as digits as its factorization.

121121003321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485473705.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121121003321103 its reverse (301123300121121), we get a palindrome (422244303442224).

The spelling of 121121003321103 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, three million, three hundred twenty-one thousand, one hundred three".