11310123011 has 24 divisors (see below), whose sum is σ = 12552540000. Its totient is φ = 10182585600.

The previous prime is 11310123007. The next prime is 11310123043. The reversal of 11310123011 is 11032101311.

It is a happy number.

It is not a de Polignac number, because 11310123011 - 2² = 11310123007 is a prime.

It is a super-2 number, since 2×11310123011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11310123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5802065 + ... + 5804013.

It is an arithmetic number, because the mean of its divisors is an integer number (523022500).

Almost surely, 2^11310123011 is an apocalyptic number.

11310123011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11310123011 is a deficient number, since it is larger than the sum of its proper divisors (1242416989).

11310123011 is a wasteful number, since it uses less digits than its factorization.

11310123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11310123011 its reverse (11032101311), we get a palindrome (22342224322).

The spelling of 11310123011 in words is "eleven billion, three hundred ten million, one hundred twenty-three thousand, eleven".