1311330120231 has 8 divisors (see below), whose sum is σ = 1840463326720. Its totient is φ = 828208496952.

The previous prime is 1311330120227. The next prime is 1311330120239. The reversal of 1311330120231 is 1320210331131.

It is a happy number.

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

It is not a de Polignac number, because 1311330120231 - 2² = 1311330120227 is a prime.

It is a super-2 number, since 2×1311330120231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311330120198 and 1311330120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311330120239) 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, 11502895735 + ... + 11502895848.

It is an arithmetic number, because the mean of its divisors is an integer number (230057915840).

Almost surely, 2^{1311330120231} is an apocalyptic number.

1311330120231 is a deficient number, since it is larger than the sum of its proper divisors (529133206489).

1311330120231 is a wasteful number, since it uses less digits than its factorization.

1311330120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23005791605.

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

Adding to 1311330120231 its reverse (1320210331131), we get a palindrome (2631540451362).

The spelling of 1311330120231 in words is "one trillion, three hundred eleven billion, three hundred thirty million, one hundred twenty thousand, two hundred thirty-one".