1310423513 has 12 divisors (see below), whose sum is σ = 1525904820. Its totient is φ = 1122089472.

The previous prime is 1310423507. The next prime is 1310423539. The reversal of 1310423513 is 3153240131.

It can be written as a sum of positive squares in 2 ways, for example, as 1259043289 + 51380224 = 35483^2 + 7168^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1310423513 is a prime.

It is a super-2 number, since 2×1310423513² = 3434419566846522338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310423503) 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, 37673 + ... + 63561.

It is an arithmetic number, because the mean of its divisors is an integer number (127158735).

Almost surely, 2^1310423513 is an apocalyptic number.

It is an amenable number.

1310423513 is a deficient number, since it is larger than the sum of its proper divisors (215481307).

1310423513 is a wasteful number, since it uses less digits than its factorization.

1310423513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26936 (or 26929 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1310423513 is about 36199.7722782893. The cubic root of 1310423513 is about 1094.3020824567.

Adding to 1310423513 its reverse (3153240131), we get a palindrome (4463663644).

The spelling of 1310423513 in words is "one billion, three hundred ten million, four hundred twenty-three thousand, five hundred thirteen".