23011112311 has 16 divisors (see below), whose sum is σ = 25477804800. Its totient is φ = 20608318720.

The previous prime is 23011112227. The next prime is 23011112339. The reversal of 23011112311 is 11321111032.

It is a happy number.

It is not a de Polignac number, because 23011112311 - 2¹³ = 23011104119 is a prime.

It is a super-2 number, since 2×23011112311² (a number of 22 digits) 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 (23011112711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286590 + ... + 357988.

It is an arithmetic number, because the mean of its divisors is an integer number (1592362800).

Almost surely, 2^23011112311 is an apocalyptic number.

23011112311 is a deficient number, since it is larger than the sum of its proper divisors (2466692489).

23011112311 is a wasteful number, since it uses less digits than its factorization.

23011112311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71846.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 23011112311 its reverse (11321111032), we get a palindrome (34332223343).

The spelling of 23011112311 in words is "twenty-three billion, eleven million, one hundred twelve thousand, three hundred eleven".