1313120343331 has 8 divisors (see below), whose sum is σ = 1358475861600. Its totient is φ = 1267769858880.

The previous prime is 1313120343277. The next prime is 1313120343349. The reversal of 1313120343331 is 1333430213131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313120343331 - 2¹³ = 1313120335139 is a prime.

It is a super-2 number, since 2×1313120343331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313120343331.

It is not an unprimeable number, because it can be changed into a prime (1313120343131) 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, 723871 + ... + 1774888.

It is an arithmetic number, because the mean of its divisors is an integer number (169809482700).

Almost surely, 2^{1313120343331} is an apocalyptic number.

1313120343331 is a deficient number, since it is larger than the sum of its proper divisors (45355518269).

1313120343331 is a wasteful number, since it uses less digits than its factorization.

1313120343331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516909.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 1313120343331 its reverse (1333430213131), we get a palindrome (2646550556462).

The spelling of 1313120343331 in words is "one trillion, three hundred thirteen billion, one hundred twenty million, three hundred forty-three thousand, three hundred thirty-one".