121033541 has 2 divisors, whose sum is σ = 121033542. Its totient is φ = 121033540.

The previous prime is 121033537. The next prime is 121033543. The reversal of 121033541 is 145330121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 49140100 = 8479^2 + 7010^2 .

It is a cyclic number.

It is not a de Polignac number, because 121033541 - 2² = 121033537 is a prime.

It is a Sophie Germain prime.

Together with 121033543, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121033543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60516770 + 60516771.

It is an arithmetic number, because the mean of its divisors is an integer number (60516771).

Almost surely, 2^121033541 is an apocalyptic number.

It is an amenable number.

121033541 is a deficient number, since it is larger than the sum of its proper divisors (1).

121033541 is an equidigital number, since it uses as much as digits as its factorization.

121033541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 121033541 is about 11001.5244852702. The cubic root of 121033541 is about 494.6544416782.

Adding to 121033541 its reverse (145330121), we get a palindrome (266363662).

The spelling of 121033541 in words is "one hundred twenty-one million, thirty-three thousand, five hundred forty-one".