121310023223 has 8 divisors (see below), whose sum is σ = 128649477600. Its totient is φ = 113993187840.

The previous prime is 121310023207. The next prime is 121310023229. The reversal of 121310023223 is 322320013121.

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 121310023223 - 2⁴ = 121310023207 is a prime.

It is a super-2 number, since 2×121310023223² (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 = 121310023195 and 121310023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121310023229) 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, 5643698 + ... + 5665151.

It is an arithmetic number, because the mean of its divisors is an integer number (16081184700).

Almost surely, 2^121310023223 is an apocalyptic number.

121310023223 is a deficient number, since it is larger than the sum of its proper divisors (7339454377).

121310023223 is a wasteful number, since it uses less digits than its factorization.

121310023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11309497.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121310023223 its reverse (322320013121), we get a palindrome (443630036344).

The spelling of 121310023223 in words is "one hundred twenty-one billion, three hundred ten million, twenty-three thousand, two hundred twenty-three".