123682053653 has 4 divisors (see below), whose sum is σ = 124512134700. Its totient is φ = 122851972608.

The previous prime is 123682053643. The next prime is 123682053661. The reversal of 123682053653 is 356350286321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 356350286321 = 151 ⋅2359935671.

It can be written as a sum of positive squares in 2 ways, for example, as 6883523089 + 116798530564 = 82967^2 + 341758^2 .

It is a cyclic number.

It is not a de Polignac number, because 123682053653 - 2⁴ = 123682053637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123682053613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415040300 + ... + 415040597.

It is an arithmetic number, because the mean of its divisors is an integer number (31128033675).

Almost surely, 2^123682053653 is an apocalyptic number.

It is an amenable number.

123682053653 is a deficient number, since it is larger than the sum of its proper divisors (830081047).

123682053653 is an equidigital number, since it uses as much as digits as its factorization.

123682053653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830081046.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 123682053653 in words is "one hundred twenty-three billion, six hundred eighty-two million, fifty-three thousand, six hundred fifty-three".