121330073 has 2 divisors, whose sum is σ = 121330074. Its totient is φ = 121330072.

The previous prime is 121330061. The next prime is 121330087. The reversal of 121330073 is 370033121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119858704 + 1471369 = 10948^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 121330073 - 2⁴ = 121330057 is a prime.

It is a super-2 number, since 2×121330073² = 29441973228370658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121330093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665036 + 60665037.

It is an arithmetic number, because the mean of its divisors is an integer number (60665037).

Almost surely, 2^121330073 is an apocalyptic number.

It is an amenable number.

121330073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121330073 is an equidigital number, since it uses as much as digits as its factorization.

121330073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 121330073 is about 11014.9931003156. The cubic root of 121330073 is about 495.0580797749.

Adding to 121330073 its reverse (370033121), we get a palindrome (491363194).

The spelling of 121330073 in words is "one hundred twenty-one million, three hundred thirty thousand, seventy-three".