123217358041 has 4 divisors (see below), whose sum is σ = 123371960292. Its totient is φ = 123062755792.

The previous prime is 123217358027. The next prime is 123217358081. The reversal of 123217358041 is 140853712321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140853712321 = 7 ⋅20121958903.

It can be written as a sum of positive squares in 2 ways, for example, as 33154947225 + 90062410816 = 182085^2 + 300104^2 .

It is a cyclic number.

It is not a de Polignac number, because 123217358041 - 2⁵ = 123217358009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123217358021) 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, 77299930 + ... + 77301523.

It is an arithmetic number, because the mean of its divisors is an integer number (30842990073).

Almost surely, 2^123217358041 is an apocalyptic number.

It is an amenable number.

123217358041 is a deficient number, since it is larger than the sum of its proper divisors (154602251).

123217358041 is an equidigital number, since it uses as much as digits as its factorization.

123217358041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154602250.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 123217358041 in words is "one hundred twenty-three billion, two hundred seventeen million, three hundred fifty-eight thousand, forty-one".