23231065111 has 4 divisors (see below), whose sum is σ = 23436649872. Its totient is φ = 23025480352.

The previous prime is 23231065087. The next prime is 23231065159. The reversal of 23231065111 is 11156013232.

It is a happy number.

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 23231065111 - 2⁵ = 23231065079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231065411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102792211 + ... + 102792436.

It is an arithmetic number, because the mean of its divisors is an integer number (5859162468).

Almost surely, 2^23231065111 is an apocalyptic number.

23231065111 is a deficient number, since it is larger than the sum of its proper divisors (205584761).

23231065111 is a wasteful number, since it uses less digits than its factorization.

23231065111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205584760.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 23231065111 its reverse (11156013232), we get a palindrome (34387078343).

The spelling of 23231065111 in words is "twenty-three billion, two hundred thirty-one million, sixty-five thousand, one hundred eleven".