1223123302301 has 4 divisors (see below), whose sum is σ = 1223133558492. Its totient is φ = 1223113046112.

The previous prime is 1223123302273. The next prime is 1223123302343. The reversal of 1223123302301 is 1032033213221.

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 818246884900 + 404876417401 = 904570^2 + 636299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223123302301 - 2¹⁸ = 1223123040157 is a prime.

It is a super-2 number, since 2×1223123302301² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223123302381) 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, 4947080 + ... + 5188433.

It is an arithmetic number, because the mean of its divisors is an integer number (305783389623).

Almost surely, 2^{1223123302301} is an apocalyptic number.

It is an amenable number.

1223123302301 is a deficient number, since it is larger than the sum of its proper divisors (10256191).

1223123302301 is a wasteful number, since it uses less digits than its factorization.

1223123302301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256190.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1223123302301 its reverse (1032033213221), we get a palindrome (2255156515522).

The spelling of 1223123302301 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, three hundred two thousand, three hundred one".