123354544501 has 4 divisors (see below), whose sum is σ = 124182427500. Its totient is φ = 122526661504.

The previous prime is 123354544451. The next prime is 123354544553. The reversal of 123354544501 is 105445453321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77603473476 + 45751071025 = 278574^2 + 213895^2 .

It is a cyclic number.

It is not a de Polignac number, because 123354544501 - 2¹¹ = 123354542453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123354544571) 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 3 ways as a sum of consecutive naturals, for example, 413941276 + ... + 413941573.

It is an arithmetic number, because the mean of its divisors is an integer number (31045606875).

Almost surely, 2^123354544501 is an apocalyptic number.

It is an amenable number.

123354544501 is a deficient number, since it is larger than the sum of its proper divisors (827882999).

123354544501 is an equidigital number, since it uses as much as digits as its factorization.

123354544501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827882998.

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

Adding to 123354544501 its reverse (105445453321), we get a palindrome (228799997822).

The spelling of 123354544501 in words is "one hundred twenty-three billion, three hundred fifty-four million, five hundred forty-four thousand, five hundred one".