123550025041521 has 12 divisors (see below), whose sum is σ = 192188927842548. Its totient is φ = 76030784640864.

The previous prime is 123550025041493. The next prime is 123550025041543. The reversal of 123550025041521 is 125140520055321.

123550025041521 is a `hidden beast` number, since 1 + 2 + 3 + 550 + 0 + 2 + 50 + 4 + 1 + 52 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85101344551521 + 38448680490000 = 9225039^2 + 6200700^2 .

It is not a de Polignac number, because 123550025041521 - 2¹⁴ = 123550025025137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123550025041561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527991559890 + ... + 527991560123.

It is an arithmetic number, because the mean of its divisors is an integer number (16015743986879).

Almost surely, 2^{123550025041521} is an apocalyptic number.

It is an amenable number.

123550025041521 is a deficient number, since it is larger than the sum of its proper divisors (68638902801027).

123550025041521 is a wasteful number, since it uses less digits than its factorization.

123550025041521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055983120032 (or 1055983120029 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 123550025041521 its reverse (125140520055321), we get a palindrome (248690545096842).

The spelling of 123550025041521 in words is "one hundred twenty-three trillion, five hundred fifty billion, twenty-five million, forty-one thousand, five hundred twenty-one".