123255011545 has 8 divisors (see below), whose sum is σ = 148813413696. Its totient is φ = 97999076016.

The previous prime is 123255011543. The next prime is 123255011563. The reversal of 123255011545 is 545110552321.

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 123255011545 - 2¹ = 123255011543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123255011545.

It is not an unprimeable number, because it can be changed into a prime (123255011543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75615757 + ... + 75617386.

It is an arithmetic number, because the mean of its divisors is an integer number (18601676712).

Almost surely, 2^123255011545 is an apocalyptic number.

It is an amenable number.

123255011545 is a deficient number, since it is larger than the sum of its proper divisors (25558402151).

123255011545 is a wasteful number, since it uses less digits than its factorization.

123255011545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151233311.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 123255011545 its reverse (545110552321), we get a palindrome (668365563866).

The spelling of 123255011545 in words is "one hundred twenty-three billion, two hundred fifty-five million, eleven thousand, five hundred forty-five".