23154535231055 has 32 divisors (see below), whose sum is σ = 28020086968896. Its totient is φ = 18367904415744.

The previous prime is 23154535231027. The next prime is 23154535231073. The reversal of 23154535231055 is 55013253545132.

It is a cyclic number.

It is not a de Polignac number, because 23154535231055 - 2⁴² = 18756488719951 is a prime.

It is a super-2 number, since 2×23154535231055² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23154535230997 and 23154535231015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441576119 + ... + 441628551.

It is an arithmetic number, because the mean of its divisors is an integer number (875627717778).

Almost surely, 2^{23154535231055} is an apocalyptic number.

23154535231055 is a deficient number, since it is larger than the sum of its proper divisors (4865551737841).

23154535231055 is a wasteful number, since it uses less digits than its factorization.

23154535231055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54107.

The product of its (nonzero) digits is 1350000, while the sum is 44.

Adding to 23154535231055 its reverse (55013253545132), we get a palindrome (78167788776187).

The spelling of 23154535231055 in words is "twenty-three trillion, one hundred fifty-four billion, five hundred thirty-five million, two hundred thirty-one thousand, fifty-five".