123121103223 has 8 divisors (see below), whose sum is σ = 164177588736. Its totient is φ = 82072676600.

The previous prime is 123121103219. The next prime is 123121103233. The reversal of 123121103223 is 322301121321.

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 123121103223 - 2² = 123121103219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123121103223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123121103213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1978983 + ... + 2040248.

It is an arithmetic number, because the mean of its divisors is an integer number (20522198592).

Almost surely, 2^123121103223 is an apocalyptic number.

123121103223 is a deficient number, since it is larger than the sum of its proper divisors (41056485513).

123121103223 is a wasteful number, since it uses less digits than its factorization.

123121103223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029445.

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

Adding to 123121103223 its reverse (322301121321), we get a palindrome (445422224544).

The spelling of 123121103223 in words is "one hundred twenty-three billion, one hundred twenty-one million, one hundred three thousand, two hundred twenty-three".