41231144021 has 4 divisors (see below), whose sum is σ = 43656505452. Its totient is φ = 38805782592.

The previous prime is 41231144011. The next prime is 41231144029. The reversal of 41231144021 is 12044113214.

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 14711021521 + 26520122500 = 121289^2 + 162850^2 .

It is a cyclic number.

It is not a de Polignac number, because 41231144021 - 2³⁴ = 24051274837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41231144029) 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, 1212680690 + ... + 1212680723.

It is an arithmetic number, because the mean of its divisors is an integer number (10914126363).

Almost surely, 2^41231144021 is an apocalyptic number.

It is an amenable number.

41231144021 is a deficient number, since it is larger than the sum of its proper divisors (2425361431).

41231144021 is a wasteful number, since it uses less digits than its factorization.

41231144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425361430.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 41231144021 its reverse (12044113214), we get a palindrome (53275257235).

The spelling of 41231144021 in words is "forty-one billion, two hundred thirty-one million, one hundred forty-four thousand, twenty-one".