23111406455 has 16 divisors (see below), whose sum is σ = 28228418400. Its totient is φ = 18160889472.

The previous prime is 23111406443. The next prime is 23111406463. The reversal of 23111406455 is 55460411132.

It is a cyclic number.

It is not a de Polignac number, because 23111406455 - 2⁶ = 23111406391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18077 + ... + 215753.

It is an arithmetic number, because the mean of its divisors is an integer number (1764276150).

Almost surely, 2^23111406455 is an apocalyptic number.

23111406455 is a deficient number, since it is larger than the sum of its proper divisors (5117011945).

23111406455 is a wasteful number, since it uses less digits than its factorization.

23111406455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198098.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 23111406455 its reverse (55460411132), we get a palindrome (78571817587).

The spelling of 23111406455 in words is "twenty-three billion, one hundred eleven million, four hundred six thousand, four hundred fifty-five".