121121000323 has 4 divisors (see below), whose sum is σ = 121592288520. Its totient is φ = 120649712128.

The previous prime is 121121000321. The next prime is 121121000353. The reversal of 121121000323 is 323000121121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121121000323 - 2¹ = 121121000321 is a prime.

It is a super-2 number, since 2×121121000323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121121000297 and 121121000306.

It is not an unprimeable number, because it can be changed into a prime (121121000321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235643713 + ... + 235644226.

It is an arithmetic number, because the mean of its divisors is an integer number (30398072130).

Almost surely, 2^121121000323 is an apocalyptic number.

121121000323 is a deficient number, since it is larger than the sum of its proper divisors (471288197).

121121000323 is an equidigital number, since it uses as much as digits as its factorization.

121121000323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471288196.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121121000323 its reverse (323000121121), we get a palindrome (444121121444).

The spelling of 121121000323 in words is "one hundred twenty-one billion, one hundred twenty-one million, three hundred twenty-three", and thus it is an aban number.