1311104111 has 8 divisors (see below), whose sum is σ = 1363281024. Its totient is φ = 1259544960.

The previous prime is 1311104051. The next prime is 1311104149. The reversal of 1311104111 is 1114011131.

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 a de Polignac number, because none of the positive numbers 2^k-1311104111 is a prime.

It is a super-2 number, since 2×1311104111² = 3437987979762200642, which 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 (1311104161) 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, 150110 + ... + 158603.

It is an arithmetic number, because the mean of its divisors is an integer number (170410128).

Almost surely, 2^1311104111 is an apocalyptic number.

1311104111 is a deficient number, since it is larger than the sum of its proper divisors (52176913).

1311104111 is a wasteful number, since it uses less digits than its factorization.

1311104111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308881.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 1311104111 is about 36209.1716420025. The cubic root of 1311104111 is about 1094.4914998217.

Adding to 1311104111 its reverse (1114011131), we get a palindrome (2425115242).

The spelling of 1311104111 in words is "one billion, three hundred eleven million, one hundred four thousand, one hundred eleven".