123144032312331 has 16 divisors (see below), whose sum is σ = 168003740896800. Its totient is φ = 80208237553920.

The previous prime is 123144032312303. The next prime is 123144032312333. The reversal of 123144032312331 is 133213230441321.

It is not a de Polignac number, because 123144032312331 - 2⁶ = 123144032312267 is a prime.

It is a super-2 number, since 2×123144032312331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123144032312292 and 123144032312301.

It is not an unprimeable number, because it can be changed into a prime (123144032312333) 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 15 ways as a sum of consecutive naturals, for example, 2258087530 + ... + 2258142063.

It is an arithmetic number, because the mean of its divisors is an integer number (10500233806050).

Almost surely, 2^{123144032312331} is an apocalyptic number.

123144032312331 is a deficient number, since it is larger than the sum of its proper divisors (44859708584469).

123144032312331 is a wasteful number, since it uses less digits than its factorization.

123144032312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516229806.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 123144032312331 its reverse (133213230441321), we get a palindrome (256357262753652).

The spelling of 123144032312331 in words is "one hundred twenty-three trillion, one hundred forty-four billion, thirty-two million, three hundred twelve thousand, three hundred thirty-one".