41440432121 has 4 divisors (see below), whose sum is σ = 45207744144. Its totient is φ = 37673120100.

The previous prime is 41440432081. The next prime is 41440432141. The reversal of 41440432121 is 12123404414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-41440432121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41440432141) 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, 1883655995 + ... + 1883656016.

It is an arithmetic number, because the mean of its divisors is an integer number (11301936036).

Almost surely, 2^41440432121 is an apocalyptic number.

It is an amenable number.

41440432121 is a deficient number, since it is larger than the sum of its proper divisors (3767312023).

41440432121 is a wasteful number, since it uses less digits than its factorization.

41440432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767312022.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 41440432121 its reverse (12123404414), we get a palindrome (53563836535).

The spelling of 41440432121 in words is "forty-one billion, four hundred forty million, four hundred thirty-two thousand, one hundred twenty-one".