121363321 has 8 divisors (see below), whose sum is σ = 124612488. Its totient is φ = 118128000.

The previous prime is 121363313. The next prime is 121363327. The reversal of 121363321 is 123363121.

It can be written as a sum of positive squares in 4 ways, for example, as 1132096 + 120231225 = 1064^2 + 10965^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121363321 - 2³ = 121363313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121363292 and 121363301.

It is not an unprimeable number, because it can be changed into a prime (121363327) 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, 15691 + ... + 22111.

It is an arithmetic number, because the mean of its divisors is an integer number (15576561).

Almost surely, 2^121363321 is an apocalyptic number.

It is an amenable number.

121363321 is a deficient number, since it is larger than the sum of its proper divisors (3249167).

121363321 is an equidigital number, since it uses as much as digits as its factorization.

121363321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923.

The product of its digits is 648, while the sum is 22.

The square root of 121363321 is about 11016.5022125900. The cubic root of 121363321 is about 495.1032957915.

The spelling of 121363321 in words is "one hundred twenty-one million, three hundred sixty-three thousand, three hundred twenty-one".