1321010130113 has 4 divisors (see below), whose sum is σ = 1321024181700. Its totient is φ = 1320996078528.

The previous prime is 1321010130091. The next prime is 1321010130149. The reversal of 1321010130113 is 3110310101231.

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 798408370369 + 522601759744 = 893537^2 + 722912^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321010130113 - 2⁶ = 1321010130049 is a prime.

It is a super-2 number, since 2×1321010130113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1321010130091 and 1321010130100.

It is not an unprimeable number, because it can be changed into a prime (1321010150113) 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, 6883820 + ... + 7073117.

It is an arithmetic number, because the mean of its divisors is an integer number (330256045425).

Almost surely, 2^{1321010130113} is an apocalyptic number.

It is an amenable number.

1321010130113 is a deficient number, since it is larger than the sum of its proper divisors (14051587).

1321010130113 is an equidigital number, since it uses as much as digits as its factorization.

1321010130113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14051586.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1321010130113 its reverse (3110310101231), we get a palindrome (4431320231344).

The spelling of 1321010130113 in words is "one trillion, three hundred twenty-one billion, ten million, one hundred thirty thousand, one hundred thirteen".