123223021101001 has 4 divisors (see below), whose sum is σ = 123223059936900. Its totient is φ = 123222982265104.

The previous prime is 123223021100911. The next prime is 123223021101023. The reversal of 123223021101001 is 100101120322321.

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 76854765889225 + 46368255211776 = 8766685^2 + 6809424^2 .

It is a cyclic number.

It is not a de Polignac number, because 123223021101001 - 2¹¹ = 123223021098953 is a prime.

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 123223021101001.

It is not an unprimeable number, because it can be changed into a prime (123223021105001) 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, 14189266 + ... + 21160843.

It is an arithmetic number, because the mean of its divisors is an integer number (30805764984225).

Almost surely, 2^{123223021101001} is an apocalyptic number.

It is an amenable number.

123223021101001 is a deficient number, since it is larger than the sum of its proper divisors (38835899).

123223021101001 is an equidigital number, since it uses as much as digits as its factorization.

123223021101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38835898.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123223021101001 its reverse (100101120322321), we get a palindrome (223324141423322).

The spelling of 123223021101001 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, twenty-one million, one hundred one thousand, one".