121011841 has 2 divisors, whose sum is σ = 121011842. Its totient is φ = 121011840.

The previous prime is 121011833. The next prime is 121011851. The reversal of 121011841 is 148110121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119793025 + 1218816 = 10945^2 + 1104^2 .

It is an emirp because it is prime and its reverse (148110121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121011841 - 2³ = 121011833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121011851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505920 + 60505921.

It is an arithmetic number, because the mean of its divisors is an integer number (60505921).

Almost surely, 2^121011841 is an apocalyptic number.

It is an amenable number.

121011841 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011841 is an equidigital number, since it uses as much as digits as its factorization.

121011841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 121011841 is about 11000.5382141057. The cubic root of 121011841 is about 494.6248778541.

Adding to 121011841 its reverse (148110121), we get a palindrome (269121962).

The spelling of 121011841 in words is "one hundred twenty-one million, eleven thousand, eight hundred forty-one".