73120111 has 8 divisors (see below), whose sum is σ = 77943600. Its totient is φ = 68354688.

The previous prime is 73120087. The next prime is 73120121. The reversal of 73120111 is 11102137.

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

It is not a de Polignac number, because 73120111 - 2⁵ = 73120079 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 (73120121) 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, 11901 + ... + 16966.

It is an arithmetic number, because the mean of its divisors is an integer number (9742950).

Almost surely, 2^73120111 is an apocalyptic number.

73120111 is a deficient number, since it is larger than the sum of its proper divisors (4823489).

73120111 is a wasteful number, since it uses less digits than its factorization.

73120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29033.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 73120111 is about 8551.0298210216. The cubic root of 73120111 is about 418.1630107555.

Adding to 73120111 its reverse (11102137), we get a palindrome (84222248).

The spelling of 73120111 in words is "seventy-three million, one hundred twenty thousand, one hundred eleven".