121313223030123 has 20 divisors (see below), whose sum is σ = 181221312795160. Its totient is φ = 80875336842432.

The previous prime is 121313223030061. The next prime is 121313223030157. The reversal of 121313223030123 is 321030322313121.

121313223030123 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 1 + 322 + 30 + 301 + 2 + 3 = 666.

It is not a de Polignac number, because 121313223030123 - 2⁶ = 121313223030059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121313223030173) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62886483 + ... + 64786851.

It is an arithmetic number, because the mean of its divisors is an integer number (9061065639758).

Almost surely, 2^{121313223030123} is an apocalyptic number.

121313223030123 is a deficient number, since it is larger than the sum of its proper divisors (59908089765037).

121313223030123 is an equidigital number, since it uses as much as digits as its factorization.

121313223030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688488 (or 2688479 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 121313223030123 its reverse (321030322313121), we get a palindrome (442343545343244).

The spelling of 121313223030123 in words is "one hundred twenty-one trillion, three hundred thirteen billion, two hundred twenty-three million, thirty thousand, one hundred twenty-three".