121335105223 has 2 divisors, whose sum is σ = 121335105224. Its totient is φ = 121335105222.

The previous prime is 121335105197. The next prime is 121335105233. The reversal of 121335105223 is 322501533121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121335105223 - 2²⁹ = 120798234311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121335105191 and 121335105200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121335105233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60667552611 + 60667552612.

It is an arithmetic number, because the mean of its divisors is an integer number (60667552612).

Almost surely, 2^121335105223 is an apocalyptic number.

121335105223 is a deficient number, since it is larger than the sum of its proper divisors (1).

121335105223 is an equidigital number, since it uses as much as digits as its factorization.

121335105223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 121335105223 its reverse (322501533121), we get a palindrome (443836638344).

The spelling of 121335105223 in words is "one hundred twenty-one billion, three hundred thirty-five million, one hundred five thousand, two hundred twenty-three".