1321012010313 has 6 divisors (see below), whose sum is σ = 1908128459354. Its totient is φ = 880674673536.

The previous prime is 1321012010303. The next prime is 1321012010327. The reversal of 1321012010313 is 3130102101231.

1321012010313 is a `hidden beast` number, since 1 + 321 + 0 + 1 + 20 + 10 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1300722002064 + 20290008249 = 1140492^2 + 142443^2 .

It is not a de Polignac number, because 1321012010313 - 2⁶ = 1321012010249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1321012010303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73389556120 + ... + 73389556137.

Almost surely, 2^{1321012010313} is an apocalyptic number.

It is an amenable number.

1321012010313 is a deficient number, since it is larger than the sum of its proper divisors (587116449041).

1321012010313 is a wasteful number, since it uses less digits than its factorization.

1321012010313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146779112263 (or 146779112260 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1321012010313 its reverse (3130102101231), we get a palindrome (4451114111544).

The spelling of 1321012010313 in words is "one trillion, three hundred twenty-one billion, twelve million, ten thousand, three hundred thirteen".