2121123103223 has 8 divisors (see below), whose sum is σ = 2170471755408. Its totient is φ = 2071775369664.

The previous prime is 2121123103207. The next prime is 2121123103247. The reversal of 2121123103223 is 3223013211212.

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 2121123103223 - 2⁴ = 2121123103207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121123103123) 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, 7221611 + ... + 7509587.

It is an arithmetic number, because the mean of its divisors is an integer number (271308969426).

Almost surely, 2^{2121123103223} is an apocalyptic number.

2121123103223 is a deficient number, since it is larger than the sum of its proper divisors (49348652185).

2121123103223 is a wasteful number, since it uses less digits than its factorization.

2121123103223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459313.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121123103223 its reverse (3223013211212), we get a palindrome (5344136314435).

The spelling of 2121123103223 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred three thousand, two hundred twenty-three".