123534130501 has 4 divisors (see below), whose sum is σ = 125274047904. Its totient is φ = 121794213100.

The previous prime is 123534130477. The next prime is 123534130529. The reversal of 123534130501 is 105031435321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123534130501 - 2⁷ = 123534130373 is a prime.

It is a super-2 number, since 2×123534130501² (a number of 23 digits) contains 22 as substring.

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 123534130501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123534130561) 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, 869958595 + ... + 869958736.

It is an arithmetic number, because the mean of its divisors is an integer number (31318511976).

Almost surely, 2^123534130501 is an apocalyptic number.

It is an amenable number.

123534130501 is a deficient number, since it is larger than the sum of its proper divisors (1739917403).

123534130501 is an equidigital number, since it uses as much as digits as its factorization.

123534130501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739917402.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 123534130501 its reverse (105031435321), we get a palindrome (228565565822).

The spelling of 123534130501 in words is "one hundred twenty-three billion, five hundred thirty-four million, one hundred thirty thousand, five hundred one".