73230002421 has 8 divisors (see below), whose sum is σ = 97645618560. Its totient is φ = 48817193952.

The previous prime is 73230002411. The next prime is 73230002431. The reversal of 73230002421 is 12420003237.

It is an interprime number because it is at equal distance from previous prime (73230002411) and next prime (73230002431).

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

It is not a de Polignac number, because 73230002421 - 2¹⁷ = 73229871349 is a prime.

It is a super-2 number, since 2×73230002421² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73230002391 and 73230002400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73230002411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640285 + ... + 745938.

It is an arithmetic number, because the mean of its divisors is an integer number (12205702320).

Almost surely, 2^73230002421 is an apocalyptic number.

It is an amenable number.

73230002421 is a deficient number, since it is larger than the sum of its proper divisors (24415616139).

73230002421 is a wasteful number, since it uses less digits than its factorization.

73230002421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403835.

The product of its (nonzero) digits is 2016, while the sum is 24.

Adding to 73230002421 its reverse (12420003237), we get a palindrome (85650005658).

The spelling of 73230002421 in words is "seventy-three billion, two hundred thirty million, two thousand, four hundred twenty-one".