1313223223 has 4 divisors (see below), whose sum is σ = 1414240408. Its totient is φ = 1212206040.

The previous prime is 1313223221. The next prime is 1313223281. The reversal of 1313223223 is 3223223131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313223223 - 2¹ = 1313223221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313223194 and 1313223203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313223221) 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, 50508573 + ... + 50508598.

It is an arithmetic number, because the mean of its divisors is an integer number (353560102).

Almost surely, 2^1313223223 is an apocalyptic number.

1313223223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313223223 is a deficient number, since it is larger than the sum of its proper divisors (101017185).

1313223223 is a wasteful number, since it uses less digits than its factorization.

1313223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101017184.

The product of its digits is 1296, while the sum is 22.

The square root of 1313223223 is about 36238.4219165239. The cubic root of 1313223223 is about 1095.0808508374.

Adding to 1313223223 its reverse (3223223131), we get a palindrome (4536446354).

The spelling of 1313223223 in words is "one billion, three hundred thirteen million, two hundred twenty-three thousand, two hundred twenty-three".