121011234223223 has 2 divisors, whose sum is σ = 121011234223224. Its totient is φ = 121011234223222.

The previous prime is 121011234223193. The next prime is 121011234223267. The reversal of 121011234223223 is 322322432110121.

It is a weak prime.

It is an emirp because it is prime and its reverse (322322432110121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121011234223223 - 2²⁰ = 121011233174647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121011234223423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505617111611 + 60505617111612.

It is an arithmetic number, because the mean of its divisors is an integer number (60505617111612).

Almost surely, 2^{121011234223223} is an apocalyptic number.

121011234223223 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011234223223 is an equidigital number, since it uses as much as digits as its factorization.

121011234223223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 121011234223223 its reverse (322322432110121), we get a palindrome (443333666333344).

The spelling of 121011234223223 in words is "one hundred twenty-one trillion, eleven billion, two hundred thirty-four million, two hundred twenty-three thousand, two hundred twenty-three".