40123123441241 has 4 divisors (see below), whose sum is σ = 40265910357684. Its totient is φ = 39980336524800.

The previous prime is 40123123441187. The next prime is 40123123441249. The reversal of 40123123441241 is 14214432132104.

40123123441241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14985384241216 + 25137739200025 = 3871096^2 + 5013755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40123123441241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40123123441198 and 40123123441207.

It is not an unprimeable number, because it can be changed into a prime (40123123441249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71393457800 + ... + 71393458361.

It is an arithmetic number, because the mean of its divisors is an integer number (10066477589421).

Almost surely, 2^{40123123441241} is an apocalyptic number.

It is an amenable number.

40123123441241 is a deficient number, since it is larger than the sum of its proper divisors (142786916443).

40123123441241 is a wasteful number, since it uses less digits than its factorization.

40123123441241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142786916442.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 40123123441241 its reverse (14214432132104), we get a palindrome (54337555573345).

The spelling of 40123123441241 in words is "forty trillion, one hundred twenty-three billion, one hundred twenty-three million, four hundred forty-one thousand, two hundred forty-one".