121311112013223 has 48 divisors (see below), whose sum is σ = 190318596316800. Its totient is φ = 68471765208000.

The previous prime is 121311112013141. The next prime is 121311112013249. The reversal of 121311112013223 is 322310211113121.

It is not a de Polignac number, because 121311112013223 - 2⁸ = 121311112012967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121311112013193 and 121311112013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121311112013263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148652128 + ... + 149465973.

It is an arithmetic number, because the mean of its divisors is an integer number (3964970756600).

Almost surely, 2^{121311112013223} is an apocalyptic number.

121311112013223 is a deficient number, since it is larger than the sum of its proper divisors (69007484303577).

121311112013223 is a wasteful number, since it uses less digits than its factorization.

121311112013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298118204 (or 298118193 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 121311112013223 its reverse (322310211113121), we get a palindrome (443621323126344).

The spelling of 121311112013223 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred twelve million, thirteen thousand, two hundred twenty-three".