123143001231012 has 48 divisors (see below), whose sum is σ = 328381912642560. Its totient is φ = 35183652920352.

The previous prime is 123143001231007. The next prime is 123143001231143. The reversal of 123143001231012 is 210132100341321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70799403 + ... + 72517869.

It is an arithmetic number, because the mean of its divisors is an integer number (6841289846720).

Almost surely, 2^{123143001231012} is an apocalyptic number.

123143001231012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123143001231012 is an abundant number, since it is smaller than the sum of its proper divisors (205238911411548).

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

123143001231012 is a wasteful number, since it uses less digits than its factorization.

123143001231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571560 (or 2571558 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123143001231012 its reverse (210132100341321), we get a palindrome (333275101572333).

The spelling of 123143001231012 in words is "one hundred twenty-three trillion, one hundred forty-three billion, one million, two hundred thirty-one thousand, twelve".