73303121 has 8 divisors (see below), whose sum is σ = 79044000. Its totient is φ = 67750560.

The previous prime is 73303103. The next prime is 73303123. The reversal of 73303121 is 12130337.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73303121 - 2⁶ = 73303057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73303093 and 73303102.

It is not an unprimeable number, because it can be changed into a prime (73303123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46271 + ... + 47828.

It is an arithmetic number, because the mean of its divisors is an integer number (9880500).

Almost surely, 2^73303121 is an apocalyptic number.

It is an amenable number.

73303121 is a deficient number, since it is larger than the sum of its proper divisors (5740879).

73303121 is a wasteful number, since it uses less digits than its factorization.

73303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94159.

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

The square root of 73303121 is about 8561.7241838312. The cubic root of 73303121 is about 418.5115890681.

Adding to 73303121 its reverse (12130337), we get a palindrome (85433458).

The spelling of 73303121 in words is "seventy-three million, three hundred three thousand, one hundred twenty-one".