73100012347 has 4 divisors (see below), whose sum is σ = 73140874960. Its totient is φ = 73059149736.

The previous prime is 73100012339. The next prime is 73100012351. The reversal of 73100012347 is 74321000137.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73100012347 - 2³ = 73100012339 is a prime.

It is a super-2 number, since 2×73100012347² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73100012647) 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 3 ways as a sum of consecutive naturals, for example, 20428623 + ... + 20432200.

It is an arithmetic number, because the mean of its divisors is an integer number (18285218740).

Almost surely, 2^73100012347 is an apocalyptic number.

73100012347 is a deficient number, since it is larger than the sum of its proper divisors (40862613).

73100012347 is a wasteful number, since it uses less digits than its factorization.

73100012347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40862612.

The product of its (nonzero) digits is 3528, while the sum is 28.

It can be divided in two parts, 731000 and 12347, that added together give a palindrome (743347).

The spelling of 73100012347 in words is "seventy-three billion, one hundred million, twelve thousand, three hundred forty-seven".