223100231121 has 24 divisors (see below), whose sum is σ = 334250766304. Its totient is φ = 148707018720.

The previous prime is 223100231087. The next prime is 223100231143. The reversal of 223100231121 is 121132001322.

223100231121 is a `hidden beast` number, since 2 + 2 + 310 + 0 + 231 + 121 = 666.

It is not a de Polignac number, because 223100231121 - 2³⁴ = 205920361937 is a prime.

It is a super-3 number, since 3×223100231121³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223100231094 and 223100231103.

It is not an unprimeable number, because it can be changed into a prime (223100231191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1337181 + ... + 1494741.

Almost surely, 2^223100231121 is an apocalyptic number.

It is an amenable number.

223100231121 is a deficient number, since it is larger than the sum of its proper divisors (111150535183).

223100231121 is an equidigital number, since it uses as much as digits as its factorization.

223100231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163403 (or 163391 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 223100231121 its reverse (121132001322), we get a palindrome (344232232443).

The spelling of 223100231121 in words is "two hundred twenty-three billion, one hundred million, two hundred thirty-one thousand, one hundred twenty-one".