223140311123 has 16 divisors (see below), whose sum is σ = 238857141600. Its totient is φ = 208070903040.

The previous prime is 223140311113. The next prime is 223140311137. The reversal of 223140311123 is 321113041322.

It is a cyclic number.

It is not a de Polignac number, because 223140311123 - 2²⁴ = 223123533907 is a prime.

It is a super-3 number, since 3×223140311123³ (a number of 35 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 (223140311113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894308 + ... + 1116273.

It is an arithmetic number, because the mean of its divisors is an integer number (14928571350).

Almost surely, 2^223140311123 is an apocalyptic number.

223140311123 is a deficient number, since it is larger than the sum of its proper divisors (15716830477).

223140311123 is a wasteful number, since it uses less digits than its factorization.

223140311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010742.

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

Adding to 223140311123 its reverse (321113041322), we get a palindrome (544253352445).

The spelling of 223140311123 in words is "two hundred twenty-three billion, one hundred forty million, three hundred eleven thousand, one hundred twenty-three".