123022440055 has 16 divisors (see below), whose sum is σ = 148945243680. Its totient is φ = 97541402112.

The previous prime is 123022440049. The next prime is 123022440067. The reversal of 123022440055 is 550044220321.

It is a cyclic number.

It is not a de Polignac number, because 123022440055 - 2⁹ = 123022439543 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, 278947 + ... + 569083.

It is an arithmetic number, because the mean of its divisors is an integer number (9309077730).

Almost surely, 2^123022440055 is an apocalyptic number.

123022440055 is a deficient number, since it is larger than the sum of its proper divisors (25922803625).

123022440055 is a wasteful number, since it uses less digits than its factorization.

123022440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290898.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 123022440055 its reverse (550044220321), we get a palindrome (673066660376).

The spelling of 123022440055 in words is "one hundred twenty-three billion, twenty-two million, four hundred forty thousand, fifty-five".