123547120513 has 8 divisors (see below), whose sum is σ = 130053549920. Its totient is φ = 117041086080.

The previous prime is 123547120511. The next prime is 123547120531. The reversal of 123547120513 is 315021745321.

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 123547120513 - 2¹ = 123547120511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123547120511) 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, 715606 + ... + 871312.

It is an arithmetic number, because the mean of its divisors is an integer number (16256693740).

Almost surely, 2^123547120513 is an apocalyptic number.

It is an amenable number.

123547120513 is a deficient number, since it is larger than the sum of its proper divisors (6506429407).

123547120513 is a wasteful number, since it uses less digits than its factorization.

123547120513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197487.

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 123547120513 its reverse (315021745321), we get a palindrome (438568865834).

The spelling of 123547120513 in words is "one hundred twenty-three billion, five hundred forty-seven million, one hundred twenty thousand, five hundred thirteen".