121642033 has 2 divisors, whose sum is σ = 121642034. Its totient is φ = 121642032.

The previous prime is 121642019. The next prime is 121642043. The reversal of 121642033 is 330246121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85063729 + 36578304 = 9223^2 + 6048^2 .

It is a cyclic number.

It is not a de Polignac number, because 121642033 - 2²¹ = 119544881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121641995 and 121642013.

It is not a weakly prime, because it can be changed into another prime (121642043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60821016 + 60821017.

It is an arithmetic number, because the mean of its divisors is an integer number (60821017).

Almost surely, 2^121642033 is an apocalyptic number.

It is an amenable number.

121642033 is a deficient number, since it is larger than the sum of its proper divisors (1).

121642033 is an equidigital number, since it uses as much as digits as its factorization.

121642033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 121642033 is about 11029.1447084531. The cubic root of 121642033 is about 495.4820091471.

Adding to 121642033 its reverse (330246121), we get a palindrome (451888154).

The spelling of 121642033 in words is "one hundred twenty-one million, six hundred forty-two thousand, thirty-three".