123544442232055 has 32 divisors (see below), whose sum is σ = 168077764108800. Its totient is φ = 86422190170752.

The previous prime is 123544442232007. The next prime is 123544442232077. The reversal of 123544442232055 is 550232244445321.

It is a cyclic number.

It is not a de Polignac number, because 123544442232055 - 2⁹ = 123544442231543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123544442231996 and 123544442232014.

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, 6856552 + ... + 17149378.

It is an arithmetic number, because the mean of its divisors is an integer number (5252430128400).

Almost surely, 2^{123544442232055} is an apocalyptic number.

123544442232055 is a deficient number, since it is larger than the sum of its proper divisors (44533321876745).

123544442232055 is a wasteful number, since it uses less digits than its factorization.

123544442232055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10302583.

The product of its (nonzero) digits is 4608000, while the sum is 46.

Adding to 123544442232055 its reverse (550232244445321), we get a palindrome (673776686677376).

The spelling of 123544442232055 in words is "one hundred twenty-three trillion, five hundred forty-four billion, four hundred forty-two million, two hundred thirty-two thousand, fifty-five".