123031134503144 has 48 divisors (see below), whose sum is σ = 270807859109700. Its totient is φ = 52243889338368.

The previous prime is 123031134503107. The next prime is 123031134503159. The reversal of 123031134503144 is 441305431130321.

It can be written as a sum of positive squares in 2 ways, for example, as 120449527502500 + 2581607000644 = 10974950^2 + 1606738^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1439658809 + ... + 1439744264.

Almost surely, 2^{123031134503144} is an apocalyptic number.

123031134503144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123031134503144 is an abundant number, since it is smaller than the sum of its proper divisors (147776724606556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123031134503144 is a wasteful number, since it uses less digits than its factorization.

123031134503144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879403202 (or 2879403191 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 123031134503144 its reverse (441305431130321), we get a palindrome (564336565633465).

The spelling of 123031134503144 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred thirty-four million, five hundred three thousand, one hundred forty-four".