1313231101331 has 8 divisors (see below), whose sum is σ = 1319226317424. Its totient is φ = 1307244909600.

The previous prime is 1313231101313. The next prime is 1313231101339. The reversal of 1313231101331 is 1331011323131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313231101331 is a prime.

It is a super-2 number, since 2×1313231101331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313231101297 and 1313231101306.

It is not an unprimeable number, because it can be changed into a prime (1313231101339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964300 + ... + 2546553.

It is an arithmetic number, because the mean of its divisors is an integer number (164903289678).

Almost surely, 2^{1313231101331} is an apocalyptic number.

1313231101331 is a deficient number, since it is larger than the sum of its proper divisors (5995216093).

1313231101331 is a wasteful number, since it uses less digits than its factorization.

1313231101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512181.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1313231101331 its reverse (1331011323131), we get a palindrome (2644242424462).

The spelling of 1313231101331 in words is "one trillion, three hundred thirteen billion, two hundred thirty-one million, one hundred one thousand, three hundred thirty-one".