223021030121123 has 16 divisors (see below), whose sum is σ = 246671239510080. Its totient is φ = 200298798919296.

The previous prime is 223021030121093. The next prime is 223021030121171. The reversal of 223021030121123 is 321121030120322.

It is a cyclic number.

It is not a de Polignac number, because 223021030121123 - 2⁶ = 223021030121059 is a prime.

It is a super-3 number, since 3×223021030121123³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223021030127123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31138061 + ... + 37624737.

It is an arithmetic number, because the mean of its divisors is an integer number (15416952469380).

Almost surely, 2^{223021030121123} is an apocalyptic number.

223021030121123 is a deficient number, since it is larger than the sum of its proper divisors (23650209388957).

223021030121123 is a wasteful number, since it uses less digits than its factorization.

223021030121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6558206.

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

Adding to 223021030121123 its reverse (321121030120322), we get a palindrome (544142060241445).

The spelling of 223021030121123 in words is "two hundred twenty-three trillion, twenty-one billion, thirty million, one hundred twenty-one thousand, one hundred twenty-three".