1310311320111 has 16 divisors (see below), whose sum is σ = 1945092160000. Its totient is φ = 871790288184.

The previous prime is 1310311320103. The next prime is 1310311320119. The reversal of 1310311320111 is 1110231130131.

1310311320111 is a `hidden beast` number, since 1 + 31 + 0 + 311 + 320 + 1 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1310311320103) and next prime (1310311320119).

It is not a de Polignac number, because 1310311320111 - 2³ = 1310311320103 is a prime.

It is a super-2 number, since 2×1310311320111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310311320119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48613831 + ... + 48640776.

It is an arithmetic number, because the mean of its divisors is an integer number (121568260000).

Almost surely, 2^{1310311320111} is an apocalyptic number.

1310311320111 is a deficient number, since it is larger than the sum of its proper divisors (634780839889).

1310311320111 is an equidigital number, since it uses as much as digits as its factorization.

1310311320111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97255115 (or 97255109 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1310311320111 its reverse (1110231130131), we get a palindrome (2420542450242).

The spelling of 1310311320111 in words is "one trillion, three hundred ten billion, three hundred eleven million, three hundred twenty thousand, one hundred eleven".