121000213323 has 36 divisors (see below), whose sum is σ = 192148127080. Its totient is φ = 73319463360.

The previous prime is 121000213309. The next prime is 121000213361. The reversal of 121000213323 is 323312000121.

It is not a de Polignac number, because 121000213323 - 2⁵ = 121000213291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000213296 and 121000213305.

It is not an unprimeable number, because it can be changed into a prime (121000213303) 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 35 ways as a sum of consecutive naturals, for example, 10266648 + ... + 10278426.

Almost surely, 2^121000213323 is an apocalyptic number.

121000213323 is a deficient number, since it is larger than the sum of its proper divisors (71147913757).

121000213323 is a wasteful number, since it uses less digits than its factorization.

121000213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21240 (or 21226 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121000213323 its reverse (323312000121), we get a palindrome (444312213444).

The spelling of 121000213323 in words is "one hundred twenty-one billion, two hundred thirteen thousand, three hundred twenty-three".