121302102223 has 6 divisors (see below), whose sum is σ = 123034650752. Its totient is φ = 119593616940.

The previous prime is 121302102217. The next prime is 121302102247. The reversal of 121302102223 is 322201203121.

It is not a de Polignac number, because 121302102223 - 2⁵ = 121302102191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121302102223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302172223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12026511 + ... + 12036592.

Almost surely, 2^121302102223 is an apocalyptic number.

121302102223 is a deficient number, since it is larger than the sum of its proper divisors (1732548529).

121302102223 is an frugal number, since it uses more digits than its factorization.

121302102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24063245 (or 24063174 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121302102223 its reverse (322201203121), we get a palindrome (443503305344).

The spelling of 121302102223 in words is "one hundred twenty-one billion, three hundred two million, one hundred two thousand, two hundred twenty-three".