23420042111 has 16 divisors (see below), whose sum is σ = 24718426560. Its totient is φ = 22155544320.

The previous prime is 23420042083. The next prime is 23420042117. The reversal of 23420042111 is 11124002432.

It is a cyclic number.

It is not a de Polignac number, because 23420042111 - 2³⁴ = 6240172927 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 (23420042117) 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, 1159646 + ... + 1179668.

It is an arithmetic number, because the mean of its divisors is an integer number (1544901660).

Almost surely, 2^23420042111 is an apocalyptic number.

23420042111 is a deficient number, since it is larger than the sum of its proper divisors (1298384449).

23420042111 is a wasteful number, since it uses less digits than its factorization.

23420042111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20866.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 23420042111 its reverse (11124002432), we get a palindrome (34544044543).

The spelling of 23420042111 in words is "twenty-three billion, four hundred twenty million, forty-two thousand, one hundred eleven".