123144034555 has 8 divisors (see below), whose sum is σ = 149978406672. Its totient is φ = 97044850848.

The previous prime is 123144034549. The next prime is 123144034613. The reversal of 123144034555 is 555430441321.

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 123144034555 - 2⁵ = 123144034523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183796732 + ... + 183797401.

It is an arithmetic number, because the mean of its divisors is an integer number (18747300834).

Almost surely, 2^123144034555 is an apocalyptic number.

123144034555 is a deficient number, since it is larger than the sum of its proper divisors (26834372117).

123144034555 is an equidigital number, since it uses as much as digits as its factorization.

123144034555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367594205.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 123144034555 its reverse (555430441321), we get a palindrome (678574475876).

The spelling of 123144034555 in words is "one hundred twenty-three billion, one hundred forty-four million, thirty-four thousand, five hundred fifty-five".