155334512123 has 16 divisors (see below), whose sum is σ = 183690836160. Its totient is φ = 128521814400.

The previous prime is 155334512111. The next prime is 155334512149. The reversal of 155334512123 is 321215433551.

It is a happy number.

155334512123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155334512123 - 2⁴ = 155334512107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155334512153) 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 15 ways as a sum of consecutive naturals, for example, 775193 + ... + 954773.

It is an arithmetic number, because the mean of its divisors is an integer number (11480677260).

Almost surely, 2^155334512123 is an apocalyptic number.

155334512123 is a deficient number, since it is larger than the sum of its proper divisors (28356324037).

155334512123 is a wasteful number, since it uses less digits than its factorization.

155334512123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183878.

The product of its digits is 54000, while the sum is 35.

Adding to 155334512123 its reverse (321215433551), we get a palindrome (476549945674).

The spelling of 155334512123 in words is "one hundred fifty-five billion, three hundred thirty-four million, five hundred twelve thousand, one hundred twenty-three".