1306122502513 has 4 divisors (see below), whose sum is σ = 1333912343040. Its totient is φ = 1278332661988.

The previous prime is 1306122502499. The next prime is 1306122502537. The reversal of 1306122502513 is 3152052216031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1306122502513 - 2¹³ = 1306122494321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306122502213) 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, 13894920193 + ... + 13894920286.

It is an arithmetic number, because the mean of its divisors is an integer number (333478085760).

Almost surely, 2^{1306122502513} is an apocalyptic number.

It is an amenable number.

1306122502513 is a deficient number, since it is larger than the sum of its proper divisors (27789840527).

1306122502513 is an equidigital number, since it uses as much as digits as its factorization.

1306122502513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27789840526.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1306122502513 its reverse (3152052216031), we get a palindrome (4458174718544).

The spelling of 1306122502513 in words is "one trillion, three hundred six billion, one hundred twenty-two million, five hundred two thousand, five hundred thirteen".