123031140445052 has 12 divisors (see below), whose sum is σ = 246062280890160. Its totient is φ = 52727631619296.

The previous prime is 123031140445049. The next prime is 123031140445067. The reversal of 123031140445052 is 250544041130321.

123031140445052 is an admirable number.

It is a super-2 number, since 2×123031140445052² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2196984650777 + ... + 2196984650832.

It is an arithmetic number, because the mean of its divisors is an integer number (20505190074180).

Almost surely, 2^{123031140445052} is an apocalyptic number.

It is an amenable number.

123031140445052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123031140445052 is a wasteful number, since it uses less digits than its factorization.

123031140445052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393969301620 (or 4393969301618 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 123031140445052 its reverse (250544041130321), we get a palindrome (373575181575373).

The spelling of 123031140445052 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred forty million, four hundred forty-five thousand, fifty-two".