123140040440331 has 4 divisors (see below), whose sum is σ = 164186720587112. Its totient is φ = 82093360293552.

The previous prime is 123140040440317. The next prime is 123140040440369. The reversal of 123140040440331 is 133044040041321.

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

It is not a de Polignac number, because 123140040440331 - 2⁷ = 123140040440203 is a prime.

It is a super-3 number, since 3×123140040440331³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123140040440371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20523340073386 + ... + 20523340073391.

It is an arithmetic number, because the mean of its divisors is an integer number (41046680146778).

Almost surely, 2^{123140040440331} is an apocalyptic number.

123140040440331 is a deficient number, since it is larger than the sum of its proper divisors (41046680146781).

123140040440331 is an equidigital number, since it uses as much as digits as its factorization.

123140040440331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41046680146780.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 123140040440331 its reverse (133044040041321), we get a palindrome (256184080481652).

The spelling of 123140040440331 in words is "one hundred twenty-three trillion, one hundred forty billion, forty million, four hundred forty thousand, three hundred thirty-one".