1301231223 has 12 divisors (see below), whose sum is σ = 1949169768. Its totient is φ = 867487320.

The previous prime is 1301231219. The next prime is 1301231257. The reversal of 1301231223 is 3221321031.

It is not a de Polignac number, because 1301231223 - 2² = 1301231219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301231196 and 1301231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301231423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2677188 + ... + 2677673.

It is an arithmetic number, because the mean of its divisors is an integer number (162430814).

Almost surely, 2^1301231223 is an apocalyptic number.

1301231223 is a deficient number, since it is larger than the sum of its proper divisors (647938545).

1301231223 is an frugal number, since it uses more digits than its factorization.

1301231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354876 (or 5354864 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1301231223 is about 36072.5827048743. The cubic root of 1301231223 is about 1091.7373251185.

Adding to 1301231223 its reverse (3221321031), we get a palindrome (4522552254).

The spelling of 1301231223 in words is "one billion, three hundred one million, two hundred thirty-one thousand, two hundred twenty-three".