73107455321 has 2 divisors, whose sum is σ = 73107455322. Its totient is φ = 73107455320.

The previous prime is 73107455287. The next prime is 73107455329. The reversal of 73107455321 is 12355470137.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71843297296 + 1264158025 = 268036^2 + 35555^2 .

It is a cyclic number.

It is not a de Polignac number, because 73107455321 - 2²² = 73103261017 is a prime.

It is a super-2 number, since 2×73107455321² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73107455329) 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 as a sum of consecutive naturals, namely, 36553727660 + 36553727661.

It is an arithmetic number, because the mean of its divisors is an integer number (36553727661).

Almost surely, 2^73107455321 is an apocalyptic number.

It is an amenable number.

73107455321 is a deficient number, since it is larger than the sum of its proper divisors (1).

73107455321 is an equidigital number, since it uses as much as digits as its factorization.

73107455321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 73107455321 in words is "seventy-three billion, one hundred seven million, four hundred fifty-five thousand, three hundred twenty-one".