40041434244121 has 4 divisors (see below), whose sum is σ = 40720102621200. Its totient is φ = 39362765867044.

The previous prime is 40041434244107. The next prime is 40041434244127. The reversal of 40041434244121 is 12144243414004.

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 cyclic number.

It is not a de Polignac number, because 40041434244121 - 2¹⁷ = 40041434113049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40041434244127) 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, 339334188451 + ... + 339334188568.

It is an arithmetic number, because the mean of its divisors is an integer number (10180025655300).

Almost surely, 2^{40041434244121} is an apocalyptic number.

It is an amenable number.

40041434244121 is a deficient number, since it is larger than the sum of its proper divisors (678668377079).

40041434244121 is an equidigital number, since it uses as much as digits as its factorization.

40041434244121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678668377078.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 40041434244121 its reverse (12144243414004), we get a palindrome (52185677658125).

The spelling of 40041434244121 in words is "forty trillion, forty-one billion, four hundred thirty-four million, two hundred forty-four thousand, one hundred twenty-one".