123112143011420 has 12 divisors (see below), whose sum is σ = 258535500324024. Its totient is φ = 49244857204560.

The previous prime is 123112143011413. The next prime is 123112143011423. The reversal of 123112143011420 is 24110341211321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123112143011420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112143011423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077803575266 + ... + 3077803575305.

It is an arithmetic number, because the mean of its divisors is an integer number (21544625027002).

Almost surely, 2^{123112143011420} is an apocalyptic number.

123112143011420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123112143011420 is an abundant number, since it is smaller than the sum of its proper divisors (135423357312604).

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

123112143011420 is a wasteful number, since it uses less digits than its factorization.

123112143011420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155607150580 (or 6155607150578 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 123112143011420 its reverse (24110341211321), we get a palindrome (147222484222741).

The spelling of 123112143011420 in words is "one hundred twenty-three trillion, one hundred twelve billion, one hundred forty-three million, eleven thousand, four hundred twenty".