73321331051 has 2 divisors, whose sum is σ = 73321331052. Its totient is φ = 73321331050.

The previous prime is 73321331047. The next prime is 73321331059. The reversal of 73321331051 is 15013312337.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73321331051 - 2² = 73321331047 is a prime.

It is not a weakly prime, because it can be changed into another prime (73321331059) 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, 36660665525 + 36660665526.

It is an arithmetic number, because the mean of its divisors is an integer number (36660665526).

Almost surely, 2^73321331051 is an apocalyptic number.

73321331051 is a deficient number, since it is larger than the sum of its proper divisors (1).

73321331051 is an equidigital number, since it uses as much as digits as its factorization.

73321331051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 29.

Adding to 73321331051 its reverse (15013312337), we get a palindrome (88334643388).

The spelling of 73321331051 in words is "seventy-three billion, three hundred twenty-one million, three hundred thirty-one thousand, fifty-one".