1311023103211 has 8 divisors (see below), whose sum is σ = 1341706766400. Its totient is φ = 1280348292552.

The previous prime is 1311023103197. The next prime is 1311023103223. The reversal of 1311023103211 is 1123013201131.

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 1311023103211 - 2⁵ = 1311023103179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311023109211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913005 + ... + 2506318.

It is an arithmetic number, because the mean of its divisors is an integer number (167713345800).

Almost surely, 2^{1311023103211} is an apocalyptic number.

1311023103211 is a deficient number, since it is larger than the sum of its proper divisors (30683663189).

1311023103211 is an equidigital number, since it uses as much as digits as its factorization.

1311023103211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426265.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1311023103211 its reverse (1123013201131), we get a palindrome (2434036304342).

The spelling of 1311023103211 in words is "one trillion, three hundred eleven billion, twenty-three million, one hundred three thousand, two hundred eleven".