1310320122113 has 4 divisors (see below), whose sum is σ = 1310375882580. Its totient is φ = 1310264361648.

The previous prime is 1310320122053. The next prime is 1310320122121. The reversal of 1310320122113 is 3112210230131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 807224980849 + 503095141264 = 898457^2 + 709292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310320122113 is a prime.

It is a super-3 number, since 3×1310320122113³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310320122193) 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, 27844970 + ... + 27891987.

It is an arithmetic number, because the mean of its divisors is an integer number (327593970645).

Almost surely, 2^{1310320122113} is an apocalyptic number.

It is an amenable number.

1310320122113 is a deficient number, since it is larger than the sum of its proper divisors (55760467).

1310320122113 is an equidigital number, since it uses as much as digits as its factorization.

1310320122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55760466.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1310320122113 its reverse (3112210230131), we get a palindrome (4422530352244).

The spelling of 1310320122113 in words is "one trillion, three hundred ten billion, three hundred twenty million, one hundred twenty-two thousand, one hundred thirteen".