23420424511111 has 8 divisors (see below), whose sum is σ = 23435871425280. Its totient is φ = 23404978377912.

The previous prime is 23420424511069. The next prime is 23420424511129. The reversal of 23420424511111 is 11111542402432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23420424511111 - 2²⁹ = 23419887640199 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 (23420424518111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67507656 + ... + 67853698.

It is an arithmetic number, because the mean of its divisors is an integer number (2929483928160).

Almost surely, 2^{23420424511111} is an apocalyptic number.

23420424511111 is a deficient number, since it is larger than the sum of its proper divisors (15446914169).

23420424511111 is a wasteful number, since it uses less digits than its factorization.

23420424511111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390485.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 23420424511111 its reverse (11111542402432), we get a palindrome (34531966913543).

The spelling of 23420424511111 in words is "twenty-three trillion, four hundred twenty billion, four hundred twenty-four million, five hundred eleven thousand, one hundred eleven".