121013321 has 8 divisors (see below), whose sum is σ = 142169664. Its totient is φ = 101549520.

The previous prime is 121013311. The next prime is 121013351. The reversal of 121013321 is 123310121.

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 121013321 - 2¹⁸ = 120751177 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121013296 and 121013305.

It is not an unprimeable number, because it can be changed into a prime (121013311) 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, 422981 + ... + 423266.

It is an arithmetic number, because the mean of its divisors is an integer number (17771208).

Almost surely, 2^121013321 is an apocalyptic number.

121013321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121013321 is a deficient number, since it is larger than the sum of its proper divisors (21156343).

121013321 is a wasteful number, since it uses less digits than its factorization.

121013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846271.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121013321 is about 11000.6054833359. The cubic root of 121013321 is about 494.6268943009.

Adding to 121013321 its reverse (123310121), we get a palindrome (244323442).

The spelling of 121013321 in words is "one hundred twenty-one million, thirteen thousand, three hundred twenty-one".