1331110101331 has 4 divisors (see below), whose sum is σ = 1352931578464. Its totient is φ = 1309288624200.

The previous prime is 1331110101317. The next prime is 1331110101437. The reversal of 1331110101331 is 1331010111331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331110101331 - 2⁷ = 1331110101203 is a prime.

It is a super-2 number, since 2×1331110101331² (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 = 1331110101299 and 1331110101308.

It is not an unprimeable number, because it can be changed into a prime (1331110101631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10910738475 + ... + 10910738596.

It is an arithmetic number, because the mean of its divisors is an integer number (338232894616).

Almost surely, 2^{1331110101331} is an apocalyptic number.

1331110101331 is a deficient number, since it is larger than the sum of its proper divisors (21821477133).

1331110101331 is an equidigital number, since it uses as much as digits as its factorization.

1331110101331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21821477132.

The product of its (nonzero) digits is 81, while the sum is 19.

Adding to 1331110101331 its reverse (1331010111331), we get a palindrome (2662120212662).

The spelling of 1331110101331 in words is "one trillion, three hundred thirty-one billion, one hundred ten million, one hundred one thousand, three hundred thirty-one".