121123301021 has 8 divisors (see below), whose sum is σ = 122952456480. Its totient is φ = 119294773488.

The previous prime is 121123301009. The next prime is 121123301023. The reversal of 121123301021 is 120103321121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121123301021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123301023) 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 7 ways as a sum of consecutive naturals, for example, 239210 + ... + 547236.

It is an arithmetic number, because the mean of its divisors is an integer number (15369057060).

Almost surely, 2^121123301021 is an apocalyptic number.

It is an amenable number.

121123301021 is a deficient number, since it is larger than the sum of its proper divisors (1829155459).

121123301021 is an equidigital number, since it uses as much as digits as its factorization.

121123301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313963.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121123301021 its reverse (120103321121), we get a palindrome (241226622142).

It can be divided in two parts, 12112 and 3301021, that added together give a palindrome (3313133).

The spelling of 121123301021 in words is "one hundred twenty-one billion, one hundred twenty-three million, three hundred one thousand, twenty-one".