123893471937309 has 8 divisors (see below), whose sum is σ = 165276052874400. Its totient is φ = 82553269479216.

The previous prime is 123893471937161. The next prime is 123893471937337. The reversal of 123893471937309 is 903739174398321.

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

It is not a de Polignac number, because 123893471937309 - 2²⁴ = 123893455160093 is a prime.

It is a super-2 number, since 2×123893471937309² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123893471937359) 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, 10594612927 + ... + 10594624620.

It is an arithmetic number, because the mean of its divisors is an integer number (20659506609300).

Almost surely, 2^{123893471937309} is an apocalyptic number.

It is an amenable number.

123893471937309 is a deficient number, since it is larger than the sum of its proper divisors (41382580937091).

123893471937309 is a wasteful number, since it uses less digits than its factorization.

123893471937309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21189239499.

The product of its (nonzero) digits is 185177664, while the sum is 69.

The spelling of 123893471937309 in words is "one hundred twenty-three trillion, eight hundred ninety-three billion, four hundred seventy-one million, nine hundred thirty-seven thousand, three hundred nine".