223103131021 has 8 divisors (see below), whose sum is σ = 228640757688. Its totient is φ = 217570080000.

The previous prime is 223103130989. The next prime is 223103131039. The reversal of 223103131021 is 120131301322.

It can be written as a sum of positive squares in 4 ways, for example, as 7502121 + 223095628900 = 2739^2 + 472330^2 .

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 223103131021 - 2⁵ = 223103130989 is a prime.

It is a super-3 number, since 3×223103131021³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223103131021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223103131051) 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, 1045080 + ... + 1240321.

It is an arithmetic number, because the mean of its divisors is an integer number (28580094711).

Almost surely, 2^223103131021 is an apocalyptic number.

It is an amenable number.

223103131021 is a deficient number, since it is larger than the sum of its proper divisors (5537626667).

223103131021 is a wasteful number, since it uses less digits than its factorization.

223103131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287823.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 223103131021 its reverse (120131301322), we get a palindrome (343234432343).

The spelling of 223103131021 in words is "two hundred twenty-three billion, one hundred three million, one hundred thirty-one thousand, twenty-one".