11311001111123 has 8 divisors (see below), whose sum is σ = 13201897953792. Its totient is φ = 9488864153736.

The previous prime is 11311001111099. The next prime is 11311001111147. The reversal of 11311001111123 is 32111110011311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11311001111099) and next prime (11311001111147).

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 11311001111123 - 2⁸ = 11311001110867 is a prime.

It is a super-2 number, since 2×11311001111123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311001113123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17189970965 + ... + 17189971622.

It is an arithmetic number, because the mean of its divisors is an integer number (1650237244224).

Almost surely, 2^{11311001111123} is an apocalyptic number.

11311001111123 is a deficient number, since it is larger than the sum of its proper divisors (1890896842669).

11311001111123 is an equidigital number, since it uses as much as digits as its factorization.

11311001111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34379942641.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 11311001111123 its reverse (32111110011311), we get a palindrome (43422111122434).

The spelling of 11311001111123 in words is "eleven trillion, three hundred eleven billion, one million, one hundred eleven thousand, one hundred twenty-three".