23130211111 has 16 divisors (see below), whose sum is σ = 26827718464. Its totient is φ = 19531632384.

The previous prime is 23130211087. The next prime is 23130211177. The reversal of 23130211111 is 11111203132.

It is a happy number.

It is not a de Polignac number, because 23130211111 - 2²⁵ = 23096656679 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 (23130211711) 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, 422341 + ... + 473953.

It is an arithmetic number, because the mean of its divisors is an integer number (1676732404).

Almost surely, 2^23130211111 is an apocalyptic number.

23130211111 is a deficient number, since it is larger than the sum of its proper divisors (3697507353).

23130211111 is an equidigital number, since it uses as much as digits as its factorization.

23130211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52570.

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

Adding to 23130211111 its reverse (11111203132), we get a palindrome (34241414243).

It can be divided in two parts, 2313021 and 1111, that added together give a palindrome (2314132).

The spelling of 23130211111 in words is "twenty-three billion, one hundred thirty million, two hundred eleven thousand, one hundred eleven".