8120726123 has 8 divisors (see below), whose sum is σ = 8140866096. Its totient is φ = 8100604800.

The previous prime is 8120726111. The next prime is 8120726147. The reversal of 8120726123 is 3216270218.

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

It is a cyclic number.

It is not a de Polignac number, because 8120726123 - 2¹⁰ = 8120725099 is a prime.

It is a super-2 number, since 2×8120726123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8120726123.

It is not an unprimeable number, because it can be changed into a prime (8120726023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273463 + ... + 1279823.

It is an arithmetic number, because the mean of its divisors is an integer number (1017608262).

Almost surely, 2^8120726123 is an apocalyptic number.

8120726123 is a deficient number, since it is larger than the sum of its proper divisors (20139973).

8120726123 is a wasteful number, since it uses less digits than its factorization.

8120726123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8120726123 is about 90115.0715640841. The cubic root of 8120726123 is about 2010.0103233713.

The spelling of 8120726123 in words is "eight billion, one hundred twenty million, seven hundred twenty-six thousand, one hundred twenty-three".