23311130111 has 4 divisors (see below), whose sum is σ = 23524993800. Its totient is φ = 23097266424.

The previous prime is 23311130107. The next prime is 23311130119. The reversal of 23311130111 is 11103111332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23311130111 - 2² = 23311130107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23311130111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311130119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106931681 + ... + 106931898.

It is an arithmetic number, because the mean of its divisors is an integer number (5881248450).

Almost surely, 2^23311130111 is an apocalyptic number.

23311130111 is a deficient number, since it is larger than the sum of its proper divisors (213863689).

23311130111 is a wasteful number, since it uses less digits than its factorization.

23311130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213863688.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 23311130111 its reverse (11103111332), we get a palindrome (34414241443).

The spelling of 23311130111 in words is "twenty-three billion, three hundred eleven million, one hundred thirty thousand, one hundred eleven".