73312103 has 4 divisors (see below), whose sum is σ = 73696128. Its totient is φ = 72928080.

The previous prime is 73312081. The next prime is 73312123. The reversal of 73312103 is 30121337.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30121337 = 3167 ⋅9511.

It is a cyclic number.

It is not a de Polignac number, because 73312103 - 2¹⁶ = 73246567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73312123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191726 + ... + 192107.

It is an arithmetic number, because the mean of its divisors is an integer number (18424032).

Almost surely, 2^73312103 is an apocalyptic number.

73312103 is a deficient number, since it is larger than the sum of its proper divisors (384025).

73312103 is a wasteful number, since it uses less digits than its factorization.

73312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384024.

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

The square root of 73312103 is about 8562.2487116411. The cubic root of 73312103 is about 418.5286820991.

The spelling of 73312103 in words is "seventy-three million, three hundred twelve thousand, one hundred three".