23420340055 has 16 divisors (see below), whose sum is σ = 32437341504. Its totient is φ = 15900652800.

The previous prime is 23420340043. The next prime is 23420340107. The reversal of 23420340055 is 55004302432.

It is not a de Polignac number, because 23420340055 - 2⁹ = 23420339543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3309102 + ... + 3316171.

It is an arithmetic number, because the mean of its divisors is an integer number (2027333844).

Almost surely, 2^23420340055 is an apocalyptic number.

23420340055 is a deficient number, since it is larger than the sum of its proper divisors (9017001449).

23420340055 is a wasteful number, since it uses less digits than its factorization.

23420340055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625386.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 23420340055 its reverse (55004302432), we get a palindrome (78424642487).

The spelling of 23420340055 in words is "twenty-three billion, four hundred twenty million, three hundred forty thousand, fifty-five".