220123123031233 has 4 divisors (see below), whose sum is σ = 220299362522500. Its totient is φ = 219946883539968.

The previous prime is 220123123031173. The next prime is 220123123031237. The reversal of 220123123031233 is 332130321321022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 144359816490289 + 75763306540944 = 12014983^2 + 8704212^2 .

It is a cyclic number.

It is not a de Polignac number, because 220123123031233 - 2⁹ = 220123123030721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220123123031237) 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, 88119743760 + ... + 88119746257.

It is an arithmetic number, because the mean of its divisors is an integer number (55074840630625).

Almost surely, 2^{220123123031233} is an apocalyptic number.

It is an amenable number.

220123123031233 is a deficient number, since it is larger than the sum of its proper divisors (176239491267).

220123123031233 is a wasteful number, since it uses less digits than its factorization.

220123123031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176239491266.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 220123123031233 its reverse (332130321321022), we get a palindrome (552253444352255).

The spelling of 220123123031233 in words is "two hundred twenty trillion, one hundred twenty-three billion, one hundred twenty-three million, thirty-one thousand, two hundred thirty-three".