123653125473 has 4 divisors (see below), whose sum is σ = 164870833968. Its totient is φ = 82435416980.

The previous prime is 123653125447. The next prime is 123653125489. The reversal of 123653125473 is 374521356321.

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 123653125473 - 2⁵ = 123653125441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123653125423) 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, 20608854243 + ... + 20608854248.

It is an arithmetic number, because the mean of its divisors is an integer number (41217708492).

Almost surely, 2^123653125473 is an apocalyptic number.

It is an amenable number.

123653125473 is a deficient number, since it is larger than the sum of its proper divisors (41217708495).

123653125473 is an equidigital number, since it uses as much as digits as its factorization.

123653125473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41217708494.

The product of its digits is 453600, while the sum is 42.

The spelling of 123653125473 in words is "one hundred twenty-three billion, six hundred fifty-three million, one hundred twenty-five thousand, four hundred seventy-three".