1311310202331 has 8 divisors (see below), whose sum is σ = 1749802340160. Its totient is φ = 873512433032.

The previous prime is 1311310202329. The next prime is 1311310202387. The reversal of 1311310202331 is 1332020131131.

It is a happy number.

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 1311310202331 - 2¹ = 1311310202329 is a prime.

It is a super-2 number, since 2×1311310202331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311310202298 and 1311310202307.

It is not an unprimeable number, because it can be changed into a prime (1311310209331) 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, 173587725 + ... + 173595278.

It is an arithmetic number, because the mean of its divisors is an integer number (218725292520).

Almost surely, 2^{1311310202331} is an apocalyptic number.

1311310202331 is a deficient number, since it is larger than the sum of its proper divisors (438492137829).

1311310202331 is a wasteful number, since it uses less digits than its factorization.

1311310202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347184265.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1311310202331 its reverse (1332020131131), we get a palindrome (2643330333462).

The spelling of 1311310202331 in words is "one trillion, three hundred eleven billion, three hundred ten million, two hundred two thousand, three hundred thirty-one".