121045440041 has 4 divisors (see below), whose sum is σ = 122220638592. Its totient is φ = 119870241492.

The previous prime is 121045440013. The next prime is 121045440059. The reversal of 121045440041 is 140044540121.

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 a de Polignac number, because none of the positive numbers 2^k-121045440041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121045440001) 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, 587599121 + ... + 587599326.

It is an arithmetic number, because the mean of its divisors is an integer number (30555159648).

Almost surely, 2^121045440041 is an apocalyptic number.

It is an amenable number.

121045440041 is a deficient number, since it is larger than the sum of its proper divisors (1175198551).

121045440041 is a wasteful number, since it uses less digits than its factorization.

121045440041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175198550.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 121045440041 its reverse (140044540121), we get a palindrome (261089980162).

The spelling of 121045440041 in words is "one hundred twenty-one billion, forty-five million, four hundred forty thousand, forty-one".