1313133223 has 4 divisors (see below), whose sum is σ = 1314177480. Its totient is φ = 1312088968.

The previous prime is 1313133209. The next prime is 1313133229. The reversal of 1313133223 is 3223313131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223313131 = 7993 ⋅403267.

It is a cyclic number.

It is not a de Polignac number, because 1313133223 - 2¹³ = 1313125031 is a prime.

It is a super-2 number, since 2×1313133223² = 3448637722692735458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313133194 and 1313133203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313133229) 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, 520240 + ... + 522757.

It is an arithmetic number, because the mean of its divisors is an integer number (328544370).

Almost surely, 2^1313133223 is an apocalyptic number.

1313133223 is a deficient number, since it is larger than the sum of its proper divisors (1044257).

1313133223 is a wasteful number, since it uses less digits than its factorization.

1313133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044256.

The product of its digits is 972, while the sum is 22.

The square root of 1313133223 is about 36237.1801193194. The cubic root of 1313133223 is about 1095.0558336313.

Adding to 1313133223 its reverse (3223313131), we get a palindrome (4536446354).

The spelling of 1313133223 in words is "one billion, three hundred thirteen million, one hundred thirty-three thousand, two hundred twenty-three".