123125441441 has 4 divisors (see below), whose sum is σ = 123490799172. Its totient is φ = 122760083712.

The previous prime is 123125441431. The next prime is 123125441471. The reversal of 123125441441 is 144144521321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144144521321 = 97 ⋅1486025993.

It can be written as a sum of positive squares in 2 ways, for example, as 28424611216 + 94700830225 = 168596^2 + 307735^2 .

It is a cyclic number.

It is not a de Polignac number, because 123125441441 - 2¹⁴ = 123125425057 is a prime.

It is a super-2 number, since 2×123125441441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123125441398 and 123125441407.

It is not an unprimeable number, because it can be changed into a prime (123125441401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182678360 + ... + 182679033.

It is an arithmetic number, because the mean of its divisors is an integer number (30872699793).

Almost surely, 2^123125441441 is an apocalyptic number.

It is an amenable number.

123125441441 is a deficient number, since it is larger than the sum of its proper divisors (365357731).

123125441441 is an equidigital number, since it uses as much as digits as its factorization.

123125441441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365357730.

The product of its digits is 15360, while the sum is 32.

Adding to 123125441441 its reverse (144144521321), we get a palindrome (267269962762).

The spelling of 123125441441 in words is "one hundred twenty-three billion, one hundred twenty-five million, four hundred forty-one thousand, four hundred forty-one".