121045440011 has 2 divisors, whose sum is σ = 121045440012. Its totient is φ = 121045440010.

The previous prime is 121045440001. The next prime is 121045440013. The reversal of 121045440011 is 110044540121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121045440011 is a prime.

Together with 121045440013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121045440013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60522720005 + 60522720006.

It is an arithmetic number, because the mean of its divisors is an integer number (60522720006).

Almost surely, 2^121045440011 is an apocalyptic number.

121045440011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121045440011 is an equidigital number, since it uses as much as digits as its factorization.

121045440011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 121045440011 its reverse (110044540121), we get a palindrome (231089980132).

The spelling of 121045440011 in words is "one hundred twenty-one billion, forty-five million, four hundred forty thousand, eleven".