7172371123 has 4 divisors (see below), whose sum is σ = 7549864360. Its totient is φ = 6794877888.

The previous prime is 7172371117. The next prime is 7172371133. The reversal of 7172371123 is 3211732717.

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: 3211732717 = 173 ⋅18564929.

It is not a de Polignac number, because 7172371123 - 2¹⁷ = 7172240051 is a prime.

It is a super-2 number, since 2×7172371123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7172371133) 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, 188746590 + ... + 188746627.

It is an arithmetic number, because the mean of its divisors is an integer number (1887466090).

Almost surely, 2^7172371123 is an apocalyptic number.

7172371123 is a deficient number, since it is larger than the sum of its proper divisors (377493237).

7172371123 is a wasteful number, since it uses less digits than its factorization.

7172371123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377493236.

The product of its digits is 12348, while the sum is 34.

The square root of 7172371123 is about 84689.8525385421. The cubic root of 7172371123 is about 1928.5056598354.

The spelling of 7172371123 in words is "seven billion, one hundred seventy-two million, three hundred seventy-one thousand, one hundred twenty-three".