23420120334405 has 16 divisors (see below), whose sum is σ = 37532729209920. Its totient is φ = 12470551953408.

The previous prime is 23420120334379. The next prime is 23420120334419. The reversal of 23420120334405 is 50443302102432.

It is not a de Polignac number, because 23420120334405 - 2⁷ = 23420120334277 is a prime.

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, 1261171132 + ... + 1261189701.

It is an arithmetic number, because the mean of its divisors is an integer number (2345795575620).

Almost surely, 2^{23420120334405} is an apocalyptic number.

It is an amenable number.

23420120334405 is a deficient number, since it is larger than the sum of its proper divisors (14112608875515).

23420120334405 is a wasteful number, since it uses less digits than its factorization.

23420120334405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522361460.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 23420120334405 its reverse (50443302102432), we get a palindrome (73863422436837).

The spelling of 23420120334405 in words is "twenty-three trillion, four hundred twenty billion, one hundred twenty million, three hundred thirty-four thousand, four hundred five".