23345678911 has 4 divisors (see below), whose sum is σ = 23607990000. Its totient is φ = 23083367824.

The previous prime is 23345678887. The next prime is 23345678921. The reversal of 23345678911 is 11987654332.

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 23345678911 - 2⁹ = 23345678399 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 (23345678921) 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, 131155411 + ... + 131155588.

It is an arithmetic number, because the mean of its divisors is an integer number (5901997500).

Almost surely, 2^23345678911 is an apocalyptic number.

23345678911 is a deficient number, since it is larger than the sum of its proper divisors (262311089).

23345678911 is an equidigital number, since it uses as much as digits as its factorization.

23345678911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262311088.

The product of its digits is 1088640, while the sum is 49.

The spelling of 23345678911 in words is "twenty-three billion, three hundred forty-five million, six hundred seventy-eight thousand, nine hundred eleven".