23113171603455 has 256 divisors, whose sum is σ = 41282273894400. Its totient is φ = 10994300190720.

The previous prime is 23113171603397. The next prime is 23113171603493. The reversal of 23113171603455 is 55430617131132.

It is a Cunningham number, because it is equal to 4807616²-1.

It is not a de Polignac number, because 23113171603455 - 2⁹ = 23113171602943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 26235154615 + ... + 26235155495.

It is an arithmetic number, because the mean of its divisors is an integer number (161258882400).

Almost surely, 2^{23113171603455} is an apocalyptic number.

23113171603455 is a deficient number, since it is larger than the sum of its proper divisors (18169102290945).

23113171603455 is a wasteful number, since it uses less digits than its factorization.

23113171603455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494.

The product of its (nonzero) digits is 226800, while the sum is 42.

Adding to 23113171603455 its reverse (55430617131132), we get a palindrome (78543788734587).

The spelling of 23113171603455 in words is "twenty-three trillion, one hundred thirteen billion, one hundred seventy-one million, six hundred three thousand, four hundred fifty-five".