1313012223 has 12 divisors (see below), whose sum is σ = 1957753408. Its totient is φ = 847104480.

The previous prime is 1313012189. The next prime is 1313012231. The reversal of 1313012223 is 3222103131.

It is not a de Polignac number, because 1313012223 - 2¹² = 1313008127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313012196 and 1313012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313012243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2352790 + ... + 2353347.

Almost surely, 2^1313012223 is an apocalyptic number.

1313012223 is a deficient number, since it is larger than the sum of its proper divisors (644741185).

1313012223 is a wasteful number, since it uses less digits than its factorization.

1313012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706174 (or 4706171 counting only the distinct ones).

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

The square root of 1313012223 is about 36235.5105248981. The cubic root of 1313012223 is about 1095.0221975859.

Adding to 1313012223 its reverse (3222103131), we get a palindrome (4535115354).

The spelling of 1313012223 in words is "one billion, three hundred thirteen million, twelve thousand, two hundred twenty-three".