1313012031223 has 4 divisors (see below), whose sum is σ = 1313016824728. Its totient is φ = 1313007237720.

The previous prime is 1313012031209. The next prime is 1313012031269. The reversal of 1313012031223 is 3221302103131.

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 1313012031223 - 2³³ = 1304422096631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313012031194 and 1313012031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313012031523) 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, 1959261 + ... + 2542582.

It is an arithmetic number, because the mean of its divisors is an integer number (328254206182).

Almost surely, 2^{1313012031223} is an apocalyptic number.

1313012031223 is a deficient number, since it is larger than the sum of its proper divisors (4793505).

1313012031223 is an equidigital number, since it uses as much as digits as its factorization.

1313012031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793504.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1313012031223 its reverse (3221302103131), we get a palindrome (4534314134354).

The spelling of 1313012031223 in words is "one trillion, three hundred thirteen billion, twelve million, thirty-one thousand, two hundred twenty-three".