121012303223 has 4 divisors (see below), whose sum is σ = 138299775120. Its totient is φ = 103724831328.

The previous prime is 121012303219. The next prime is 121012303259. The reversal of 121012303223 is 322303210121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322303210121 = 71129 ⋅4531249.

It is a cyclic number.

It is not a de Polignac number, because 121012303223 - 2² = 121012303219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121012303195 and 121012303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012303123) 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, 8643735938 + ... + 8643735951.

It is an arithmetic number, because the mean of its divisors is an integer number (34574943780).

Almost surely, 2^121012303223 is an apocalyptic number.

121012303223 is a deficient number, since it is larger than the sum of its proper divisors (17287471897).

121012303223 is an equidigital number, since it uses as much as digits as its factorization.

121012303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17287471896.

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

Adding to 121012303223 its reverse (322303210121), we get a palindrome (443315513344).

The spelling of 121012303223 in words is "one hundred twenty-one billion, twelve million, three hundred three thousand, two hundred twenty-three".