223031321101 has 4 divisors (see below), whose sum is σ = 223032311932. Its totient is φ = 223030330272.

The previous prime is 223031321099. The next prime is 223031321113. The reversal of 223031321101 is 101123130322.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21003545476 + 202027775625 = 144926^2 + 449475^2 .

It is a cyclic number.

It is not a de Polignac number, because 223031321101 - 2¹ = 223031321099 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 (223031321501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23185 + ... + 668281.

It is an arithmetic number, because the mean of its divisors is an integer number (55758077983).

Almost surely, 2^223031321101 is an apocalyptic number.

It is an amenable number.

223031321101 is a deficient number, since it is larger than the sum of its proper divisors (990831).

223031321101 is an equidigital number, since it uses as much as digits as its factorization.

223031321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990830.

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

Adding to 223031321101 its reverse (101123130322), we get a palindrome (324154451423).

The spelling of 223031321101 in words is "two hundred twenty-three billion, thirty-one million, three hundred twenty-one thousand, one hundred one".