123041355555 has 8 divisors (see below), whose sum is σ = 196866168912. Its totient is φ = 65622056288.

The previous prime is 123041355553. The next prime is 123041355557. The reversal of 123041355555 is 555553140321.

It is an interprime number because it is at equal distance from previous prime (123041355553) and next prime (123041355557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123041355555 - 2¹ = 123041355553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123041355553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4101378504 + ... + 4101378533.

It is an arithmetic number, because the mean of its divisors is an integer number (24608271114).

Almost surely, 2^123041355555 is an apocalyptic number.

123041355555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123041355555 is a deficient number, since it is larger than the sum of its proper divisors (73824813357).

123041355555 is an equidigital number, since it uses as much as digits as its factorization.

123041355555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8202757045.

The product of its (nonzero) digits is 225000, while the sum is 39.

Adding to 123041355555 its reverse (555553140321), we get a palindrome (678594495876).

The spelling of 123041355555 in words is "one hundred twenty-three billion, forty-one million, three hundred fifty-five thousand, five hundred fifty-five".