223121130123 has 8 divisors (see below), whose sum is σ = 310429398528. Its totient is φ = 142280140904.

The previous prime is 223121130083. The next prime is 223121130131. The reversal of 223121130123 is 321031121322.

223121130123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223121130123 - 2²² = 223116935819 is a prime.

It is a super-3 number, since 3×223121130123³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223121130123.

It is not an unprimeable number, because it can be changed into a prime (223121130223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616819715 + ... + 1616819852.

It is an arithmetic number, because the mean of its divisors is an integer number (38803674816).

Almost surely, 2^223121130123 is an apocalyptic number.

223121130123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

223121130123 is a deficient number, since it is larger than the sum of its proper divisors (87308268405).

223121130123 is a wasteful number, since it uses less digits than its factorization.

223121130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233639593.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 223121130123 its reverse (321031121322), we get a palindrome (544152251445).

The spelling of 223121130123 in words is "two hundred twenty-three billion, one hundred twenty-one million, one hundred thirty thousand, one hundred twenty-three".